The Wyoming Department of Transportation Reference Marker System lists highways by their state inventory control number. Since these inventory numbers are not featured on the highways, lists compiled here are designed to provide mile posting information for individual, signed highways across the state.
The following tables lists all of the major towns, geographical features, highway junctions, and points of interests along the route. The second column shows the actual milepost marker found on the highway; note that the mileposts rarely reset at zero at the start of new highways. The distance column lists the distance between each geographical feature. If there are multiple features that require several lines to explain, then the distance in this column is omitted. The overall mileage column references the cumulative mileage of the route, with the bold-faced number in the column providing the total mileage for a signed route.
Acronyms used include “CL” referring to “City” or “Corporate” Limits, AH for miles Ahead, BK for miles Back.
Interstate exit lists compiled from the Wyoming Department of Transportation 1997 Wyoming Reference Marker System and personal observation by Andy Field.
Exit Number | Route Number | Road Name | Notes |
---|---|---|---|
Milepost 0 | Welcome to Wyoming, “A Great Land Outdoors,” “Like No Place on Earth,” and “Forever West” (Don’t forget to “Cowboy Up!”) | Speed Limit 75 | I-25 enters Wyoming from Colorado along with U.S. 87 a short distnace south of Cheyenne. The U.S. highway is well-signed throughout Wyoming. |
WELCOME TO LARAMIE COUNTY! | |||
Parking Area | |||
Exit 2 | Terry Ranch Road | Wyoming 223 is the old alignment of U.S. 87 before it shifted to I-25. | |
Milepost 6 | Port of Entry | Check/Weigh Station and Parking Area | |
Exit 7 | College Drive Cheyenne | STATE OF WYOMING INFORMATION CENTER AND REST AREA Get your free Wyoming State Highway Map at the Rest Area and Welcome Center. |
|
Exit 8A, 8C | Yellowstone-Grand Teton National Parks via |
This is the only cloverleaf interchange joining two Interstates within the state of Wyoming. The exits are labeled B-D for I-80 travelers. | |
Exit 9 | Lincolnway Drive | The guide signs fail to mention Business Loop I-80, similar to the guide signs on I-25 in Denver that fail to mention either Bus. I-70 or U.S. 287 at the Colfax Avenue exit. | |
Exit 10 | Missile Drive Happy Jack Road F.E. Warren Air Force Base | Formerly, this interchange connected to WYO 226, while WYO 210 had no direct access. The signs at this interchange omit WYO 226. | |
Exit 11 | Randall Drive | F.E. Warren Air Force Base | |
Exit 12 | BUSINESS |
Central Avenue and Cheyenne North | This interchange was completely redesigned in 1982. |
Exit 13 | Vandehei Avenue | ||
Exit 16 | Horse Creek Road and Iron Mountain Road | ||
Exit 17 | Torrington Newcastle LEFT EXIT SOUTHBOUND | U.S. 85 parts ways with I-25 and U.S. 87 heading northbound. Heading south, I-25 and U.S. 85 are nearly inseparable all the way to Las Cruces, New Mexico (excluding the sections from Castle Rock to Denver and from Denver to Cheyenne). | |
Exit 21 | Laramie County Route 220 | Ridley Road | The stretch of I-25 between exits 17 and 54 is devoid of services and interest. Do not venture forth with less than a half tank of gas! |
Exit 25 | Laramie County Route 224 | Atlas Road (NO ACCESS) | |
Exit 29 | Laramie County Route 228 | Whitaker Road | |
Exit 34 | Laramie County Route 120 SOUTH | Nimmo Road True Road TO CR-232 | True Road is likely to be named for the True Oil Company, which was very prominent in Wyoming. |
Exit 39 | Laramie County Route 123 NORTH | Little Bear Community Road TO Hirsig Road and Moffett Road | Little Bear Community Road is Historic U.S. 87 between Exits 39 and 47. |
Exit 47 | Laramie County Route 245 | Bear Creek Road to Little Bear Road | |
Milepost 47 | Welcome to PLATTE COUNTY! | ||
Exit 54 | Chugwater; To |
REST AREA | |
Exit 57 | Chugwater and TY Basin Road | ||
Exit 65 | Slater Road | ||
Milepost 65 | Parking Area | ||
Exit 66 | Hunton Road | ||
Exit 68 | Platte County Route 264 | Antelope Road | |
Exit 70 | Platte County Route 232 | Bordeaux Road | |
Exit 73 | Laramie | Sybille Canyon Wildlife Area via |
|
Exit 78 | Wheatland; To |
||
Exit 80 | Wheatland; To |
||
Exit 84 | Platte County Route 47 | East Laramie River Road and Uva | |
Exit 84 | Johnson Road | ||
Exit 91 | REST AREA | Dwyer Junction | Most Interstate rest areas in Wyoming are designed to handle traffic in both directions. Usually this means a full diamond interchange will provide direct access to a single rest area from each roadway. |
Exit 92 | Guernsey and Torrington TO |
U.S. 26 used to end here until 1950; then it was extended west to Oregon. I-25, U.S. 26, and U.S. 87 follow the historic Oregon Trail from Exits 92 to 188B. | |
Exit 94 | Platte County Routes 114 and 117 | El Rancho Road; Fish Creek Road; Pepper Road | Pepper Road is the original routing of U.S. 26. |
Exit 100 | Cassa | WYO 319 is Historic U.S. 87 between Exits 100 and 126. | |
Exit 104 | Middle Bear Creek Road | ||
Exit 111 | Platte County Route 59 to Glendo; Horseshoe Creek Road | Cassa; REST AREA | Glendo State Park |
Milepost 119 | WELCOME TO CONVERSE COUNTY! | ||
Exit 126 | Lusk and Chadron, Nebraska | U.S. 85 combines with U.S. 20 and U.S. 85 through to Mule Creek Junction, where it turns east into South Dakota. | |
Exit 126 | REST AREA | Orin Junction | This is the western terminus of U.S. 18. The original route of U.S. 20, U.S. 26, U.S. 87 follows Converse County Route 1 (Irvine Road) as an alternate route into Douglas along the railroad. |
Milepost 129 | Parking Area | ||
Exit 135 | Douglas | I-26 begins to turn westward at Douglas en route to Casper. The Laramie Mountains prevent a more direct approach from the south. This routing originated with the Yellowstone Highway in the late 1910s and early 1920s. | |
Exit 140 | Douglas Esterbrook Road | A rare four-business route overlap. | |
Exit 146 | La Prele Road TO Cold Springs Road | WYO 91 and WYO 96 together make up Historic U.S. 87 between Exits 140 and 146. | |
Exit 150 | Inez Road | ||
Exit 151 | Converse County Road 13 | Natural Bridge Road | La Prele Reservoir and Ayres Natural Bridge |
Milepost 153 | Parking Area | ||
Exit 156 | Bixby Road | ||
Exit 160 | Glenrock TO |
||
Exit 165 | Glenrock, Deer Creek Road | ||
Milepost 171 | Parking Area | ||
Milepost 173 | Welcome to NATRONA COUNTY! | ||
Exit 182 | Brooks; Hat Six Road; Cole Creek Road | Edness K. Wilkins State Park | |
Exit 185 | Evansville; Wyoming Boulevard; Casper Beltline | Casper’s Eastgate Mall lies a short distance south of I-25 via WYO 258. WYO 258 is the Casper Beltline, which provides a through route to Casper Mountain, WYO 220, and Casper College. | |
Exit 186A-B | BUSINESS |
East Yellowstone Highway; Casper; North Beverly Street; Bryan Scott Stock Trail | Business Loop I-25 in Casper is rather short, only providing access to the city center. It returns to I-25 at Exit 188A. |
Exit 187 | McKinley Street | ||
Exit 188A | Center Street; Downtown Casper | Suffixed exit numbers (such as 188A) are rare in Wyoming since most exits are spaced a mile or more apart. | |
Exit 188B | Walnut Street to CY Avenue | WYO 220 provides the best route for southbound travelers to Laramie (via WYO 487) and to Rawlins (via U.S. 287). Direct access to Wyoming 220 from Interstate 25 and U.S. 20-26 was provided with completion of the Casper West Beltline (Wyoming 257). The Oregon Trail splits off from I-25 here to follow the North Platte River and WYO 220. | |
Exit 189 | Shoshoni; Natrona County International Airport; Port of Entry | To Yellowstone-Grand Teton National Parks, follow |
|
Exit 191 | Barr Nunn; Wardwell Road; Salt Creek Highway | WYO 254 is Historic U.S. 87E (1926-1936) and Historic U.S. 87 (after 1936). | |
Exit 197 | Natrona County Route 705 | Ormsby Road | |
Exit 210 | Midwest; Edgerton; Horse Ranch Creek Road | WYO 259 provides access to the historically notable Teapot Dome. WYO 259 and WYO 358 between Exits 210 and 227 is Historic U.S. 87. U.S. 87 was decommissioned here in the early 1980s, when I-25 was completed. | |
Exit 216 | South Castle Creek Road | ||
Exit 223 | Ranch Access | ||
Exit 227 | Midwest; Edgerton | ||
Milepost 234 | Welcome to JOHNSON COUNTY! | ||
Exit 235 | Johnson County Route 210 SOUTH | Tisdale Mountain Road, Long Canyon Road, Dead Horse Road | Tisdale is actually on the exit sign; the other roads feed into the exit. |
Exit 246 | Powder River Road | WYO 196 / Historic U.S. 87 and I-25 cross the Powder River here. | |
Exit 249 | Johnson County Route 51 TO |
TTT Road, Lone Bear Road | |
Exit 254 | Kaycee | REST AREA | |
Exit 265 | Johnson County Route 208 | Reno Road | |
Milepost 274 | Parking Area | ||
Exit 280 | Middlefork Road | ||
Exit 291 | Johnson County Route 13 | Trabing Road | |
Exit 298 | Buffalo | This business loop is more like a spur, since it leaves I-25 and never returns. Use Exit 298 to |
|
Exit 299 | Buffalo Worland | Yellowstone-Grand Teton National Parks and Bighorn National Forestvia |
|
Exit 300 |
WEST: Sheridan EAST: Gillette End |
Exit Number | Route Number | Road Name | Notes |
---|---|---|---|
Utah Exit 197 | Wyoming Port of Entry (EASTBOUND ONLY) | Travelers heading east along I-80 will start to see Wyoming DOT-issued signs warning motorists about the upcoming Port of Entry four miles before the state line. | |
Milepost 0 | Welcome to Wyoming and Uinta County! | ||
Exit 1 | Wyoming Port of Entry (eastbound only); Old Utah Port of Entry (westbound only) | SPEED LIMIT 75 | All commercial and some private trucks must stop at the Port of Entry. The Wyoming facility was finished in 1994; it is designed to handle significantly more trucks than it could before the facility is upgraded. In the other direction, the Utah Port of Entry is further west from here. |
Exit 3 | TO |
Harrison Drive; Evanston West | Right after the Port of Entry, confirming markers for U.S. 189 appear. Although signs in Utah do not show it, U.S. 189 technically shares alignment with U.S. 40 from Heber City to Silver Creek Junction and with I-80 from Silver Creek Junction to east of Evanston. |
Exit Number | Route Number | Street/Road Name | Miscellaneous/Trivia |
Exit 5 | Front Street Mirror Lake Scenic Byway High Uintas Wyoming State Hospital | This exit is the most direct route into downtown Evanston. It also provides access to Wal-Mart, McDonalds, and the whole array of franchise facilities … and the state mental health facility is located on the other side of the freeway from the franchises. Although Exit 5 now provides direct access into Evanston, this interchange was not part of the Evanston exits as recently as 1985. That middle exit was opened in spring or summer 1986. On the westbound “Evanston NEXT 3 EXITS” sign, a previous green-out for “3” concealed “2.” Before, access to WYO 89 or WYO 150 was available at either Exit 3 or Exit 6, and driving through Central Evanston via Business Loop I-80. This is one of the reasons why those two exits are also signed as TO |
|
Exit 6 | TO |
Harrison Drive; Evanston East | STATE OF WYOMING INFORMATION CENTER AND REST AREA – Pick up your free Wyoming state map at the information counter. |
Uinta County Route 180 | Bear River State Park For eastbound travelers, Old Evanston Road (Uinta County Route 180) is the original route of Historic U.S. 30 between Exits 10 and 30. |
||
Exit 10 | Painter Road | The Old Eagle Rock Ski Area was near this exit. | |
Exit 15 | Divide Road Three Sisters | The Three Sisters are the three hills I-80 traverses between Exits 15 and 30. Heading westbound, the first sister is just after Exit 15. | |
Exit 18 | Uinta County Route 181 SOUTH |
Kemmerer Piedmont | Yellowstone-Grand Teton National Parks via Uinta County Route 181 connects Historic U.S. 189 with Historic U.S. 30 (Uinta County Route 180). The U.S. 189 exit marks the low point between the first two Sisters from I-80 eastbound. |
Exit 21 | Coal Road | Between Exits 18 and 21, westbound travelers climb onto Toms Draw and then descend into the Piedmont Valley. | |
Exit 23A/23 | Bar Hat Road | ||
Exit 23B/24 | Uinta County Route 141 Uinta County Route 173 | Leroy Road Piedmont Road | Heading westbound, I-80 ascends to over 6000 feet elevation at Bigelow Bench. Heading eastbound, I-80 leaves the Green River Basin and flattens out somewhat. |
Exit 28 | Uinta County Route 207 | French Road | PARKING AREA |
Exit 30 | Uinta County Route 202 | Bigelow Road (also Bigelow Bench Road) | Westbound travelers may exit here for |
Exit 33 | Uinta County Route 230 | Union Road | Traveling eastbound, I-80 enters the Bridger Valley, named for the famed mountaineer, Jim Bridger. |
Exit 34 | Fort Bridger; Urie; Lyman | ||
Fort Bridger State Historic Site via |
For westbound traffic, this is a good place to stop before heading onto Evanston. During inclement weather, it is advised to stop here as well, since the freeway traverses the “Three Sisters” further ahead. Tire chains and snow tires may be necessary in winter. | ||
Exit 39 | Carter; Mountain View | Flaming Gorge National Recreation Area via |
|
Exit 41 | Lyman | REST AREA – The Lyman Rest Area (Exit 41) is a solar-powered rest area. There is a big display there that explains how the water is heated by the panels on the roof. This is a common design for the smaller rest areas across the state of Wyoming and also some of the larger ones too. Rest area buildings are also designed to face the sun and to avoid the wind with sloping roofs. For that reason, Wyoming rest areas are considered state-of-the-art in energy efficiency. | |
Exit 48 | Lyman; Mountain View; Bridger Valley | The name “Mountain View” is used for two separate communities in the state of Wyoming. One is just south of this exit on |
|
Exit 53 | Church Butte Road | This exit again connects Interstate 80 to |
|
Milepost 56 | Welcome to Sweetwater County! | ||
Milepost 60 | Parking Area | ||
Exit 61 | TO |
Cedar Mountain Road Granger | TO |
Exit 66 | Kemmerer; Pocatello, Idaho; Fossil Butte National Monument | This interchange was expanded in 1996 to allow full access. Previously, I-80 eastbound traffic could not take U.S. 30 west, and U.S. 30 eastbound traffic could not take I-80 west. This problem was eventually remedied. For westbound travelers, there is a Yellowstone – Grand Teton National Parks via |
|
Exit 68 | Little America | Billboards advertising “Little America” line I-80 for miles on either side of this outpost. Motorist services include a motel, gas station, truck stop and restaurant all rolled into one. The population of Little America consists of the service center’s employees who do not wish to commute from nearby Green River. Other “Little Amnerica” facilities are in Salt Lake City and Cheyenne. WYO 374 is poorly acknowledged for the few miles of “shared alignment” between Exits 66 and 68. The state highway sees disjointed sections due to I-80. |
|
Exit72 | TO |
Westvaco Road | Trona Mines via Exit 72 (as of 2002): FMC Corporation; General Chemical/Arm and Hammer Baking Soda; Tenneco |
Exit 83 | La Barge Road Jamestown Road Peru | Trona Mines via Exit 83: Solvay Minerals/Texas Gulf Rhone-Poulenc/Stauffer |
|
Exit 85 | Sweetwater County Route 59 | TO |
Gaensslen Ranch; Rolling Green Golf Course; rest area. WYO 374 between Exit 68 and Green River is part of Historic U.S. 30. |
Exit 89 | TO |
West Flaming Gorge Way Green River | Home of the Green River Ordinance. Signs indicating enforcement of this ordinance are posted along Business Loop I-80 as it enters the city. The ordinance states that commercial solicitors must be registered with the city and have to operate under strict limits. This law restricts traveling con men from setting up shop and swindling the unsuspecting locals. |
Exit 91 | TO |
East Flaming Gorge Way Green River | Flaming Gorge National Recreation Area via Historic U.S. 30 between Exits 91 and 99 was supplanted by I-80. The only way between Rock Springs and Green River is via the freeway. |
Exit 99 | East Flaming Gorge Road to Vernal, Utah | Flaming Gorge National Recreation Area; Dinosaur National Monument via |
|
Exit 102 | Dewar Drive; Rock Springs West Interchange | Plenty of motorist services available at this interchange. Foothill Boulevard, which parallels I-80, is Historic U.S. 30 between Exits 99 and 102. At Milepost 101, Foothill Boulevard was realigned to accomodate a planned interchange along I-80 with Foothill Boulevard north and Sunset Drive south. | |
Exit 103 | College Drive; Western Wyoming Community College | LOCAL ACCESS ONLY. This interchange was completed in 1991. | |
Exit 104 | Elk Street; Farson; Pinedale | Yellowstone-Grand Teton National Parks via |
|
Exit 106 | TO |
Pilot Butte Drive; Rock Springs East Interchange | A rest area was planned at this interchange. |
Exit 111 | Baxter Road to Airport Road | Use |
|
Exit 122 | Superior | ||
Exit 130 | Point of Rocks; Black Buttes Road; Jim Bridger Power Plant | Last services (gas and food) heading eastbound until Exit 150, Table Rock. | |
Exit 136 | Black Butte Road | This east-west road is |
|
Milepost 137 | Parking Area | ||
Exit 139 | Red Hill Road | The Union Pacific Railroad parallels a lengthy stretch of I-80 here. | |
Exit 142 | Sweetwater County Route 19 | Bitter Creek Road | |
Milepost 144 | Bitter Creek Rest Area | The Patrick Draw Oil Field is south of the rest area. | |
Exit 146 | Sweetwater County Route 24 | Patrick Draw Road | |
Exit 150 | Sweetwater County Route 55 | Table Rock Road | A company town located at this interchange was distinctive due to a large smokestack rising from the center of the housing development. This smokestack is long gone. Gas and limited food are available at this interchange. |
Exit 152 | Sweetwater County Route 21 | Bar X Road | |
Exit 154 | BLM Road | BLM stands for the Bureau of Land Management, which owns a significant portion of the land not already owned by the U.S. National Park System or by the U.S. Forest Service in the state of Wyoming. An older statistic indicated that the federal government owned as much as 70% of the land in Wyoming — much of that land is the unarable land in the western two-thirds of the state. Ranching outfits typically lease the land from the government for the purposes of grazing livestock. The sometimes conflicting interests between ranchers and the federal governement has ignited what is known as the “Sagebrush Rebellion.” It began in Nevada, and the rebellion eventually spread throughout the West. Many of the rugged individualists who populate this land disapprove of Washington’s interference. This evolved as more land disputes arose, especially those tied to resource development (not just minerals, but also wind turbines and power lines). | |
Exit 156 | GL Road | West Branch of the Continental Divide | |
Exit 158 | Sweetwater County Route 67 NORTH and Sweetwater County Route 80 SOUTH | Tipton Road | |
Exit 164 | Red Desert West | ||
Exit 165 | Red Desert East | ||
Exit 166 | Booster Road | ||
Exit 168 | Frewen Road | Along this portion of I-80, many of the exits lead to old stops along the railroad, including the site of Frewen. | |
Exit 170 | Rasmussen Road | ||
Exit 173 | Sweetwater County Route 23 | Wamsutter | The mileage signs between Rock Springs and Rawlins use Wamsutter as a destination. |
Exit 184 | Future Rest Area | Continental Divide Road; Creston | Between Exits 156 and 206, I-80 traverses the Great Divide Basin. Precipitation that falls in this basin does not flow to either ocean; instead, it remains within the basin. |
Exit 187 | Creston Junction; Baggs Road | Little Snake River Valley | |
Milepost 187 | Parking Area | ||
Exit 196 | Riner Road | Reassurance markers posted along this stretch from 1990 to 1997, read “EAST I-80, WEST U.S. 30, NORTH WYO 789.” Of course, U.S. 30 travels east along side I-80, not counter to it. | |
Milepost 199 | Welcome to Carbon County! | ||
Exit 201 | Daley Road | ||
Exit 204 | Knobs Road | ||
Exit 206 | Hadsell Road | East Branch Continental Divide | |
Exit 209 | Johnson Road | Rest Area | |
Milepost 211 | Weigh Station/Port of Entry | ||
Exit 211 | TO |
Spruce Street; Rawlins West Interchange | |
Exit 214 | Higley Boulevard; Central Rawlins | Wyoming State Penitentiary | |
Exit 215 | Cedar Street; Rawlins East Interchange | WESTBOUND ONLY: Yellowstone-Grand Teton National Parks via |
|
Exit 219 | West Sinclair | To Seminoe State Park, use County Route 351, the Seminoe to Alcova Back Country Byway | |
Exit 221 | East Sinclair | ||
Exit 228 | Fort Fred Steele State Historic Site | Fort Steele Road; Savage Ranch Road | REST AREA |
Exit 235 | Walcott; Hanna; Medicine Bow; Saratoga; Snowy Range Scenic Byway | ||
Exit 238 | Carbon County Route 215 | Peterson Road | |
Milepost 246 | Halleck Ridge Summit | ||
Exit 255 | Hanna; Elk Mountain | ||
Exit 260 | Carbon County Route 402 | Elk Mountain-Medicine Bow Road | Carbon County Route 402 is the only county road listed on Exit Signs from I-80. The interchange is actually with CR 3, which intersects with CR 402 just south of I-80. CR-402 parallels I-80 between Exits 260 and 272. |
Milepost 262 | Parking Area | ||
Exit 267 | Carbon County Route 402 | Wagonhound Road | REST AREA |
Exit 272 | Arlington | The Arlington grade (just west of Exit 272) is commonly referred to as the most often-closed stretch of I-80 in the country. | |
Exit 279 | Carbon County Route 15 | Cooper Cove Road; Dutton Creek Road | There was an old white square secondary state highway marker for Carbon County Route 15 along Cooper Cove Road posted in the 1990s. |
Milepost 280 | Welcome to Albany County! | ||
Milepost 282 | Clement Bengough Monument and Gravesite | Traveling by at 75 mph, it is difficult to see this gravesite off the side of the freeway. It is not accessible from the freeway; instead, one must use the Dutton Creek Road exit to get to it. | |
Exit 290 | Albany County Route 59 | Quealy Dome Road | Eastbound travelers are 22 miles out from Laramie. |
Exit 297 | Herrick Lane | ||
Exit 310 | Curtis Street; Laramie North Interchange | Use |
|
Exit 311 | Snowy Range Road to Centennial and Woods Landing | Jelm Mountain Observatory via Snowy Range Ski Area, Medicine Bow National Forest, and Snowy Range National Scenic Byway via |
|
Exit 313 | Third Street; North to Downtown Laramie; South to Fort Collins, Colorado | Laramie Chamber of Commerce | |
Exit 316 | Grand Avenue; Laramie East Interchange | Use |
|
Milepost 317 | SPEED LIMIT 65 (EASTBOUND) | Steep grade to Sherman Hill over the next six miles of I-80 east. 2000-2001 Construction through Telephone Canyon widened the freeway from four lanes to five lanes. |
|
Welcome to Medicine Bow National Forest, Pole Mountain/Vedauwoo Unit | |||
Exit 323 | Happy Jack Road Sherman Hill Summit (Historic |
REST AREA; STATE OF WYOMING TOURIST INFORMATION CENTER; Lincoln Monument; Curt Gowdy State Park | |
SPEED LIMIT 65 (WESTBOUND) | Eastbound I-80 starts the descent into Cheyenne, while westbound traffic heads into the narrow Telephone Canyon. | ||
Exit 329 | Albany County Route 234 | Vedauwoo Road | Vedauwoo Rocks Ames Monument |
Leaving Medicine Bow National Forest, Pole Mountain/Vedauwoo Unit | |||
Exit 333 | Lone Tree | PARKING AREA | |
Exit 335 | Albany County Route 30 | Buford Road | A gas station is located in Buford. |
Welcome to Laramie County! | |||
Exit 339 | Laramie County Route 206 | Remount Ranch | The best radio reception in the state is located between Mileposts 323 and 345. As I-80 travels at a high elevation, Front Range radio transmitting from Colorado are received here. |
Exit 342 | FORMER |
Harriman Road | This county route was transferred from the state in the 2000s, and Wyoming 218 was decommissioned as a result. |
Milepost 344 | Parking Area | ||
Exit 345 | Warren Road | Alignments of Historic U.S. 30 can be seen from around this exit. | |
Exit 348 | Otto Road | WYO 225 is Historic U.S. 30 between Exits 348 and 359. | |
Exit 358 | West Lincolnway; Cheyenne West Interchange | ||
Exit 359 | North to Casper and south to Denver | Use |
|
Exit 362 | Central Avenue; Greeley Highway; Downtown Cheyenne | The link from I-80 to I-180 north is a diamond interchange since Interstate 180 is not a freeway. | |
Exit 364 | College Drive; Nationway | Westbound travelers are directed to use Exit 364 for the State Capitol and Wyoming State Museum | |
Exit 367 | Laramie County Route 209 | Campstool Road | |
Exit 370 | Archer; Dell Range | University of Wyoming Agricultural Experiment Station | |
Milepost 371 | Port of Entry and Weigh/Check Station. | ||
Exit 377 | Hillsdale | Between Archer and Pine Bluffs via Durham, Burns, and Egbert (Exits 370 through 391), Historic U.S. 30 more closely follows the Union Pacific Railroad via several county roads (Durham Road, Burns Road and Pine Bluffs Road). This routing is commonly called the “Old Highway” in Southeastern Wyoming. | |
Exit 386 | Burns and Carpenter | As of 2012, Wyoming 213 was rerouted out of Burns and extended along a new alignment north to connect to U.S. 85. | |
Exit 391 | Laramie County Route 154 | Egbert | |
Exit 401 | Pine Bluffs West Interchange | State of Wyoming Information Center and Rest Area | |
Nebraska Exit 1 |
Pine Bluffs East Interchange | Nebraska does not sign its portion of Business Loop I-80 around Pine Bluffs from the I-80 mainline. U.S. 30 is now free of I-80 for the remainder of its trip eastward. Heading west, U.S. 30 overlays the I-80 corridor for the majority of its route through Wyoming. |
Exit Number | Route Number | Road Name | Notes | |
---|---|---|---|---|
Milepost 0 | Speed Limit 75 | Welcome to Wyoming, Like No Place on Earth/Forever West | ||
WELCOME TO SHERIDAN COUNTY! | ||||
Exit 1 | Sheridan County Route 65 TO |
Parkman Barker Road |
County routes are seldom signed off Interstate highways in Wyoming. An exception is the County Road 402 exit off I-80 near Elk Mountain. | |
Exit 9 | Ranchester Greybull | Yellowstone-Grand Teton National Parks via Bighorn National Forest and Medicine Wheel via |
||
Exit 14 | Monarch Kleenburn Acme Road |
For Historic |
||
Exit 16 | Sheridan County Route 110 | Monarch Road TO |
For |
|
Milepost 16 | Parking Area | |||
Exit 20 | Sheridan Main Street; Port of Entry | Locals like to claim that the best year-round weather in the state is in Sheridan County. | ||
Exit 23 | Fifth Avenue to downtown Sheridan | Trail End State Historic Park; State of Wyoming Information Center and Rest Area | ||
Exit 25 | Coffeen Avenue to Sheridan and Ucross | Sheridan County Regional Airport via |
||
Milepost 31 | Parking Area | |||
Exit 33 | Sheridan County Route 131 | Meade Creek Road | ||
Exit 37 | Sheridan County Routes 32 and 34 | Banner; Story; Prairie Dog Creek Road | ||
Milepost 42 | WELCOME TO JOHNSON COUNTY! | |||
Exit 44 | Story; Banner | Fort Phil Kearney State Historic Site. Use Johnson County Route 23 SOUTH for |
||
Exit 47 | Johnson County Route 262 | Shell Creek Road; Lake De Smet | ||
Exit 51 | Lake De Smet; Lake Ridge Road | |||
Exit 53 | Johnson County Route 1 | Rock Creek Road | ||
Exit 56A | Buffalo; Johnson County Regional Airport | |||
Exit 56B | Use Interstate 25 south to Casper, Cheyenne, Fort Collins, Denver, Colorado Springs, Pueblo, Trinidad, Santa Fe, Albuquerque, Las Cruces | This is one of three Interstate-to-Interstate connections in the state of Wyoming. The directional-T interchange here is the only multi-level junction in the entire state. U.S. 87 leaves I-90 and begins its southeastern trek toward Texas via Southeastern Wyoming, Colorado and New Mexico. | ||
Exit 58 | Buffalo and Ucross | U.S. 16 provides a slower-paced, less-traveled alternative to I-90. To Cloud Peak Skyway via |
||
Milepost 61 | Eastbound Only | Parking Area | ||
Exit 65 | Johnson County Route 114 | Red Hills Road; Tiperary Road | ||
Milepost 68 | Westbound Only | Parking Area | ||
Exit 73 | Johnson County Route 204 | TW Road; Crazy Woman Creek Road | ||
Exit 77 | Johnson County Route 204 | Schoonover Road; TW Road | ||
Exit 82 | Indian Creek Road | |||
Exit 88 | Johnson County Route 195 | Upper Powder River Road | REST AREA | |
Exit 91 | Johnson County Route 158 | Dead Horse Creek Road | ||
Milepost 96 | WELCOME TO CAMPBELL COUNTY! | |||
Exit 102 | TO Campbell County Route 19 | TO Buffalo Cut Across Road (Campbell County Route 18) | Buffalo Cut Across Road in Campbell County is the same as TW Road in Johnson County. The county route numbers also change. | |
Exit 106 | Campbell County Routes 20 and 63 | Barlow Road; Kingsbury Road | ||
Milepost 110 | Parking Area | |||
Exit 113 | Campbell County Routes 32, 35, and 106 | Wild Horse Road | TO Lowery Road | |
Exit 116 | Campbell County Route 32 | Force Road | ||
Exit 124 | Gillette; Ucross; Weston | Welcome to Gillette, the Energy Capital of the United States. Eastbound travelers are about to enter the Black Hills region of Northeastern Wyoming. Westbound travelers are in the Powder River Basin. | ||
Exit 126 | Wright, Douglas | |||
Exit 128 | Gillette | Use |
||
Exit 129 | Campbell County Route 38 | Garner Lake Road | Signed as Truck Wyoming 59 south of Wyoming 51 | |
Exit 132 | Campbell County Route 3 | American Road Wyodak | ||
Exit 141 | Campbell County Route 1 | Adon Road Rozet | ||
Milepost 149 | WELCOME TO CROOK COUNTY! | |||
Exit 153 | Moorcroft; Newcastle; Carlile; Devils Tower National Monument | Rest Area | ||
Exit 154 | Moorcroft; Pine Haven | Gas, food, and lodging are available in Moorcroft. | ||
Exit 160 | Wind Creek Road | |||
Milepost 163 | Parking Area | |||
Exit 165 | Crook County Route 205 to Wyoming 113 | Pine Ridge Road | Keyhole Reservoir State Park | |
Exit 172 | Crook County Route 151 | Inyan Kara Creek Road | ||
Milepost 177 | Parking Area | |||
Exit 178 | Crook County Route 120 and Crook County Route 217 | Coal Divide Road to Old Sundance Road; Beaver Creek Road | ||
Exit 185 | Sundance; Devils Tower National Monument; Upton | U.S. 14 does not actually go to Devils Tower, but it provides the most direct connection from I-90 to WYO 24 and WYO 110, which spurs into the national monument. Heading eastbound, this exit is signed as “TO |
||
Exit 187 | Sundance; Newcastle | Rest Area | ||
Exit 189 | Sundance East Interchange; Rest Area; Port of Entry | |||
Milepost 190 | Weigh Station/Port of Entry | |||
Exit 191 | Crook County Route 207 | Moskee Road | Historic U.S. 14 closely parallels I-90 between Exit 189 and the South Dakota state line along a frontage road on the north side of the freeway. This is an unmarked state-maintained roadway. | |
Exit 199 | Aladdin; State of Wyoming Information Center and Rest Area | Use Wyoming 111 north to Wyoming 24. The welcome center at this interchange opened in 2010 and is well worth the visit. | ||
Exit 205 | Crook County Route 142 | Beulah Redwater Road; Lower Creek Road | This is the final interchange in Wyoming. After Beulah, motorists enter South Dakota, heading through the rest of the Black Hills toward the Great Plains. |
Exit Number | Route Number / Road Name | Notes |
---|---|---|
Exits 0A-B | EAST Omaha WEST Laramie |
The junction with I-80 is simply a diamond interchange with stoplights at the base. |
Exit 0C | Fifth Street (Campstool Road) | This “exit” is the third stoplight heading northbound. Between the signals at Fifth and Ninth Street is a pedestrian over crossing. |
Exit 0D | Ninth Street | The fourth stoplight is at the southern base of the Union-Pacific viaduct. |
Exit 1 | Lincolnway (Sixteenth Street) EAST: Pine Bluffs WEST: Laramie |
Interstate 180 ends at the fifth stoplight. Reassurance signs north of Lincolnway along Central Avenue only indicate Business Loop I-25, U.S. 85 and Business U.S. 87. |
Signed Route | Milepost Number | Description | State Control Route | Distance | Overall Mileage |
---|---|---|---|---|---|
29.57 | Junction Begin |
32 | 0.00 | 0.00 | |
36.62 | Railroad At-Grade Crossing | 32 | 7.05 | 7.05 | |
39.36 | Park-Big Horn County Line | 32 | 2.74 | 9.79 | |
40.14 | WCL Deaver | 32 | 0.78 | 10.57 | |
40.57 | Railroad At-Grade Crossing | 32 | 0.43 | 11.00 | |
40.62 | Junction |
32 | 0.05 | 11.05 | |
40.62 | End |
32 | 0.00 | 11.05 |
Signed Route | Milepost Number | Description | State Control Route | Distance | Overall Mileage |
---|---|---|---|---|---|
32.46 | Junction Begin |
2302 | 0.00 | 0.00 | |
0.33 | SCL Upton | 2302 | 32.13 | 32.13 | |
0.21 | Burlington Northern Railroad Separation | 2302 | 0.12 | 32.25 | |
0.00/220.13 | Junction |
2302/44 | 0.21 | 32.46 | |
219.83/28.21 | Junction |
44/600 | 0.30 | 32.76 | |
27.64 | NCL Upton | 600 | 0.57 | 33.33 | |
16.46 | Weston-Crook County Line | 600 | 11.18 | 44.51 | |
0.00 | Junction |
600 | 16.46 | 60.97 | |
0.00 | End |
600 | 0.00 | 60.97 |
Signed Route | Milepost Number | Description | State Control Route | Distance | Overall Mileage |
---|---|---|---|---|---|
0.00 | Junction Begin |
33 | 0.00 | 0.00 | |
0.08 | End Divided Section | 33 | 0.08 | 0.08 | |
0.94 | WCL Thermopolis | 33 | 0.86 | 0.94 | |
4.21 | 4.21BK=3.27AH | 33 | 3.27 | 4.21 | |
8.13 | Junction |
33 | 4.86 | 9.07 | |
25.67 | Junction |
33 | 17.54 | 26.61 | |
32.29 | Junction |
33 | 6.62 | 33.23 | |
37.10 | Goosberry Creek Rest Area | 33 | 4.81 | 38.04 | |
43.10 | Hot Springs-Park County Line | 33 | 6.00 | 44.04 | |
51.35 | SCL Meeteetse | 33 | 8.25 | 52.29 | |
51.63 | Junction |
33 | 0.28 | 52.57 | |
51.72 | NCL Meeteetse | 33 | 0.09 | 52.66 | |
51.73 | Greybull River | 33 | 0.01 | 52.67 | |
56.33 | 56.33BK=56.31AH | 33 | 4.60 | 57.27 | |
79.16 | SCL Cody | 33 | 22.85 | 80.12 | |
80.32 | 80.32BK=80.72AH | 33 | 1.16 | 81.28 | |
81.07 | Alkali Lake | 33 | 0.35 | 81.63 | |
81.21 | Junction |
33 | 0.14 | 81.77 | |
81.21 | 2.22 Mile Overlap on |
33 | 0.00 | 81.77 | |
83.43 | Junction |
33 | 2.22 | 83.99 | |
83.43 | 0.44 Mile Overlap on |
33 | 0.00 | 83.99 | |
83.87 | 83.87BK=100.00AH | 33 | 0.44 | 84.43 | |
100.00 | Junction |
33 | 0.00 | 84.43 | |
100.41 | NCL Cody | 33 | 0.41 | 84.84 | |
100.53 | Shoshone River | 33 | 0.12 | 84.96 | |
116.91 | Junction |
33 | 16.38 | 101.34 | |
128.89 | Clark’s Fork River | 33 | 11.98 | 113.32 | |
129.50 | Clark’s Fork River | 33 | 0.61 | 113.93 | |
130.10 | Junction |
33 | 0.60 | 114.53 | |
135.14 | Big Sand Coulee | 33 | 5.04 | 119.57 | |
137.53 | Montana State Line End Begin Montana 72 |
33 | 2.39 | 121.96 |
Signed Route | Milepost Number | Description | State Control Route | Distance | Overall Mileage |
---|---|---|---|---|---|
44.31 | Junction Begin |
21 | 0.00 | 0.00 | |
57.01 | Carbon-Natrona County Line | 21 | 12.70 | 12.70 | |
62.73 | Sweetwater River | 21 | 5.72 | 18.42 | |
62.83 | Independence Rock | 21 | 0.10 | 18.52 | |
79.75 | 79.75BK=79.60AH | 21 | 16.92 | 35.44 | |
94.33 | North Platte River | 21 | 14.73 | 50.17 | |
97.31 | Junction |
21 | 2.98 | 53.15 | |
108.06 | Begin Four Lane | 21 | 10.75 | 63.90 | |
110.90 | WCL Casper | 21 | 2.84 | 66.74 | |
113.36 | Junction |
21 | 2.46 | 69.20 | |
115.23 | End Four Lane | 21 | 1.87 | 71.07 | |
115.84 | Railroad at-grade crossing | 21 | 0.61 | 71.68 | |
116.11 | 116.11BK=116.37AH | 21 | 0.27 | 71.95 | |
116.41 | North Platte River | 21 | 0.04 | 71.99 | |
116.48 | Junction Business |
21 | 0.07 | 72.06 | |
116.73 | Burlington Northern Railroad Separation | 21 | 0.25 | 72.31 | |
117.21 | Junction |
21 | 0.48 | 72.79 | |
117.21 | End |
21 | 0.00 | 72.79 |
Signed Route | Milepost Number | Description | State Control Route | Distance | Overall Mileage |
---|---|---|---|---|---|
0.00 | Junction |
26 | 0.00 | 0.00 | |
0.00 | Begin |
26 | 0.00 | 0.00 | |
0.18 | Clark Street Viaduct; Union Pacific Railroad separation | 26 | 0.18 | 0.18 | |
0.42 | Railroad at-grade crossing | 26 | 0.24 | 0.42 | |
1.32 | Junction |
26 | 0.90 | 1.32 | |
2.10/0.00 | Junction |
26/103 | 0.78 | 2.10 | |
0.73 | ECL Laramie | 103 | 0.73 | 2.83 | |
2.78 | Junction |
103 | 2.05 | 4.88 | |
4.67 | 4.67 BK=4.53AH | 103 | 1.89 | 6.77 | |
4.70 | Junction |
103 | 0.17 | 6.94 | |
11.82 | 11.82 BK=11.81AH | 103 | 7.12 | 14.06 | |
21.62 | Junction |
103 | 9.81 | 23.87 | |
27.44 | Railroad at-grade crossing | 103 | 5.82 | 29.69 | |
27.75 | 27.75BK=27.42AH | 103 | 0.31 | 30.00 | |
27.42 | Centennial | 103 | 0.00 | 30.00 | |
28.71 | Medicine Bow National Forest Boundary | 103 | 1.29 | 31.29 | |
28.71 | 103 | 0.00 | 31.29 | ||
machine, and other winter activities | |||||
41.14 | Albany-Carbon County Line (Libby Flats/Snowy Range) | 103 | 12.43 | 43.72 | |
47.08 | 47.08BK=47.46AH | 103 | 5.94 | 49.66 | |
56.30 | Medicine Bow National Forest Boundary | 103 | 8.84 | 58.50 | |
67.15 | North Platte River | 103 | 10.85 | 69.35 | |
68.12/28.20 | Junction |
103/22 | 0.97 | 70.32 | |
21.43 | SCL Saratoga | 22 | 6.77 | 77.09 | |
20.28 | Junction |
22 | 1.15 | 78.24 | |
20.00 | North Platte River | 22 | 0.28 | 78.52 | |
19.65 | NCL Saratoga | 22 | 0.35 | 78.87 | |
0.00 | Junction End |
22 | 19.65 | 98.52 |
Signed Route | Milepost Number | Description | State Control Route | Distance | Overall Mileage |
---|---|---|---|---|---|
0.00 | Junction |
26 | 0.00 | 0.00 | |
0.00 | Begin |
26 | 0.00 | 0.00 | |
0.18 | Clark Street Viaduct; Union Pacific Railroad separation | 26 | 0.18 | 0.18 | |
0.42 | Railroad at-grade crossing | 26 | 0.24 | 0.42 | |
1.32 | Junction |
26 | 0.90 | 1.32 | |
2.10 | Junction |
26 | 0.78 | 2.10 | |
2.43 | WCL Laramie; end four lanes undivided | 26 | 0.33 | 2.43 | |
15.94 | 15.94BK=16.02AH | 26 | 13.51 | 15.94 | |
27.30 | Junction |
26 | 11.28 | 27.22 | |
28.48 | Medicine Bow National Forest | 26 | 1.18 | 28.40 | |
34.93 | Railroad at-grade crossing | 26 | 6.45 | 34.85 | |
41.28 | Union Pacific Railroad Separation | 26 | 6.35 | 41.20 | |
42.04 | Colorado State Line | 26 | 0.76 | 41.96 | |
42.04/126.92 | Follow |
26/22 | 0.00 | 41.96 | |
126.92 | Colorado State Line | 22 | 0.00 | 41.96 | |
122.07 | 122.07BK=121.93AH | 22 | 4.85 | 46.81 | |
100.42 | ECL Riverside | 22 | 21.51 | 68.32 | |
100.00 | Junction |
22 | 0.42 | 68.74 | |
38.20 | 38.20BK=100.00AH | 22 | 0.00 | 68.74 | |
38.15 | NCL Riverside | 22 | 0.05 | 68.79 | |
28.20 | Junction End |
22 | 9.95 | 78.74 |
Signed Route | Milepost Number | Description | State Control Route | Distance | Overall Mileage |
---|---|---|---|---|---|
55.10 | Colorado State Line Begin |
1903 | 0.00 | 0.00 | |
30.14 | North Alkali Creek | 1903 | 24.96 | 24.96 | |
15.50 | Salt Wells Creek | 1903 | 14.64 | 39.60 | |
2.22 | SCL Rock Springs | 1903 | 13.28 | 52.88 | |
1.81 | Dead Horse Canyon Creek | 1903 | 0.41 | 53.29 | |
0.10 | 0.10BK=1.67AH (Equation due to remanding section | 1903 | 0.14 | 53.43 | |
between |
1903 | ||||
Rock Springs City Control) | 1903 | ||||
0.00 | Junction End |
1903 | 0.10 | 53.53 |
Signed Route | Milepost Number | Description | State Control Route | Distance | Overall Mileage |
---|---|---|---|---|---|
44.85 | Utah State Line Begin End |
1900 | 0.00 | 0.00 | |
44.21 | Henry’s Fork River | 1900 | 0.64 | 0.64 | |
39.03 | Twin Buttes Draw | 1900 | 5.18 | 5.82 | |
31.15 | Squaw Hollow | 1900 | 7.88 | 13.70 | |
24.98 | Buckboard Wash | 1900 | 6.17 | 19.87 | |
20.00 | 20.00BK=20.63AH | 1900 | 4.98 | 24.85 | |
14.14 | Black’s Fork River | 1900 | 5.86 | 30.71 | |
2.74 | SCL Green River | 1900 | 11.40 | 42.11 | |
0.95 | 0.95BK=1.44AH | 1900 | 1.79 | 43.90 | |
0.77 | Green River | 1900 | 0.67 | 44.57 | |
0.60 | 0.60BK=0.54AH | 1900 | 0.17 | 44.74 | |
0.32 | Union Pacific Railroad Separation | 1900 | 0.28 | 45.02 | |
0.00 | Junction |
1900 | 0.32 | 45.34 | |
0.00 | End |
1900 | 0.00 | 45.34 |
Signed Route | Milepost Number | Description | State Control Route | Distance | Overall Mileage |
---|---|---|---|---|---|
0.00 | Junction Begin |
2303 | 0.00 | 0.00 | |
9.68 | Weston-Crook County Line | 2303 | 9.68 | 9.68 | |
9.75 | 9.75BK=9.86AH | 2303 | 0.07 | 9.75 | |
27.43 | Junction |
2303 | 17.57 | 27.32 | |
27.74 | SCL Sundance | 2303 | 0.31 | 27.63 | |
27.87 | 27.87BK=27.93AH | 2303 | 0.13 | 27.76 | |
28.05 | Junction Bus Loop |
2303 | 0.12 | 27.88 | |
28.05 | End |
2303 | 0.00 | 27.88 |
Signed Route | Milepost Number | Description | State Control Route | Distance | Overall Mileage |
---|---|---|---|---|---|
0.00 | Junction Begin |
24 | 0.00 | 0.00 | |
0.51 | 0.51BK=0.52AH | 24 | 0.51 | 0.51 | |
1.17 | NCL Medicine Bow | 24 | 0.65 | 1.16 | |
17.47 | 17.47BK=17.48AH | 24 | 16.30 | 17.46 | |
22.16 | Junction |
24 | 4.68 | 22.14 | |
22.36 | 22.36BK=23.31AH | 24 | 0.20 | 22.34 | |
45.10 | Shirley Basin Rest Area | 24 | 21.79 | 44.13 | |
46.03 | Junction Back when |
24 | 0.93 | 45.06 | |
47.20 | Carbon-Natrona County Line | 24 | 1.17 | 46.23 | |
47.20 | Carbon-Natrona County Line | 24 | 0.00 | 46.23 | |
55.80 | 55.80BK=55.98AH | 24 | 8.60 | 54.83 | |
72.71 | Junction End |
24 | 16.73 | 71.56 |
Signed Route | Milepost Number | Description | State Control Route | Distance | Overall Mileage |
---|---|---|---|---|---|
93.45 | Junction |
42 | 0.00 | 0.00 | |
93.45 | Begin |
42 | 0.00 | 0.00 | |
100.00 | Junction |
42 | 6.55 | 6.55 | |
100.88 | WCL Edgerton | 42 | 0.88 | 7.43 | |
101.44 | NCL Edgerton | 42 | 0.56 | 7.99 | |
107.94 | Natrona-Johnson County Line | 42 | 6.50 | 14.49 | |
111.37 | Meadow Creek | 42 | 3.43 | 17.92 | |
112.79 | Junction |
42 | 1.42 | 19.34 | |
116.85 | J.J. Draw | 42 | 4.06 | 23.40 | |
118.73 | Johnson-Campbell County Line | 42 | 1.88 | 25.28 | |
131.79 | Junction |
42 | 13.06 | 38.34 | |
150.63 | WCL Wright | 42 | 18.84 | 57.18 | |
151.26 | Junction |
42 | 0.63 | 57.81 | |
151.26 | End |
42 | 0.00 | 57.81 |
Page Updated June 10, 2012.