Routing: The lowest numbered state highway, Wyoming 10 travels from Wyoming 230 at Woods Landing (Milepost 27.30) south to the Colorado-Wyoming Border; serves the Jelm Mountain Observatory (elevation 9,656 feet above sea level). Mileposts: Mileposts increase from north to south (0.00 to 9.12).
Jelm Mountain Road
Routing: Wyoming 11 travels from Wyoming 130 six miles east of Centennial (Milepost 21.62) southwest to Albany along the South Fork of the Little Laramie River. Mileposts: Mileposts increase from north to south (0.00 to 10.94). Wyoming 10, 11, 12, 13, and 14 are clustered in Albany County.
Routing: Wyoming 12 travels from Wyoming 130 five miles west of Laramie (just past the General Brees/Laramie Regional Airport at Milepost 4.70) to Albany County Route 57A (Mandell Lane) just past junction with Interstate 80 Exit 297. At this point, Wyoming 12 becomes Albany County Route 57 (Dutton Creek Road). Albany County Route 57 connects with Interstate 80 again at Exit 290 (Quealy Dome) via Albany County Route 59 (Hunt Road). Mileposts: Mileposts increase from east to west (0.00 to 12.18).
Routing: Wyoming 13 travels from U.S. 30 and U.S. 287 near Rock River southwest to Interstate 80 at Arlington. This route serves both Carbon County (9.29 miles) and Albany County (8.47 miles). The county line is at Milepost 8.04. Mileposts: Mileposts increase from east to west, 0.00 to 1.68 then 1.25 to 17.33 due to realignment (using the inverse BK=AH formula). The Arlington exit (Exit 272) off Interstate 80 is known to be one of the worst sections along the entire transcontinental freeway in terms of wind, ice, and snow. Interstate 80 is called the "Snow Chi Minh Trail" by some because of the constant blowing snow conditions in the winter. The Interstate is frequently closed due to wind and snow. As recently as February 2002, Exit 272 was not marked as Wyoming 13, even though that route begins at this exit.
Routing: Wyoming 14 travels from Wyoming 130 (Milepost 2.78) south to General Brees Field (Laramie Regional Airport). This may be one of the shortest state-maintained routes in the state, as it is just a third of a mile long. This route is not signed and is slated for decommissioning once the city of Laramie accepts its responsibility (per the 2012 WyoDOT Reference Marker Guide). Mileposts on Wyoming 14 increase from north to south (0.00 to 0.36).
History: In addition, Wyoming 14 was the old designation for the current Alternate U.S. 14 between Cody and Burgess Junction via Powell and Lovell (in Park and Bighorn Counties). Wyoming 14 existed between 1940 and approximately 1965. Confusion between Wyoming 14 and U.S. 14 caused the highway department to recommission Wyoming 14 as Alternate U.S. 14.
Routing: Wyoming 22 travels from U.S. 26-89-189-191 (Broadway) in Jackson west to the Idaho-Wyoming State Line via the Teton Pass. Connects to Idaho 33 and is one route to take from Jackson to Idaho Falls, Idaho. Wyoming 22 follows State Control Number 2000 for its entire length. History: Between 1942 and 1954, Wyoming 22 connected with Idaho's Alternate U.S. 20. U.S. 20 was extended west from Yellowstone in 1942. Alternate U.S. 20 used to begin at U.S. 20 at Sugar City, Idaho, then headed southeast along Idaho 33 to connect with Wyoming 22. Alternate U.S. 20 used to end at the Wyoming-Idaho State Line just west of Teton Pass. Since Wyoming never commissioned a continuation of this route, Alternate U.S. 20 never returned to its parent route (U.S. 20). If Wyoming were to have commissioned an extension of this Alternate U.S. 20, it would likely follow Wyoming 22 east to the "Y" Junction with U.S. 26-89-189-191; U.S. 26-89-191 north of Jackson to Moran Junction; U.S. 26-287 southeast to Diversion Dam Junction; U.S. 26 east to Riverton; and U.S. 26-Wyoming 789 northeast to Junction U.S. 20 Shoshoni.
Teton Pass Highway
Routing: Wyoming 24 travels from U.S. 14 at Devil's Tower Junction in Crook County northeast to Hulett, then east to the South Dakota-Wyoming State Line. The road continues east as South Dakota 34. Wyoming 24 follows State Control Route 601. Wyoming 24 provides a direct connection from U.S. 14 to Devils Tower National Monument (via a short Wyoming 110 spur). Wyoming 24 was not in the original state highway grid; it was not commissioned until 1961. Its predecessor along this routing was Wyoming 514.
Bear Lodge Highway
History: Wyoming 26 is the original designation for what is now Wyoming 34 between Bosler and Wheatland. Some have postulated that an original intented extension of U.S. 26 would have taken the route to U.S. 30-287; this changed in 1950 when U.S. 26 was extended into Idaho via its current alignment.
Routing: Wyoming 28 travels from Wyoming 372 near Seedskadee National Wildlife Refuge northeast to U.S. 287 southeast of Lander via Farson, South Pass City, and Atlantic City. For photos, go to the Wyoming 28 Guide. Wyoming 28 follows State Control Route 1912 from Junction Wyoming 372 to Farson and State Control Route 14 from Farson to Junction U.S. 287 near Lander. Wyoming 28 follows the historic Oregon Trail corridor for its entire length. The highway passes through the famous historic gold mining towns of South Pass City and Atlantic City. South Pass was one of the lowest passes over the Continental Divide, which is why pioneers used that crossing to get across Wyoming.
South Pass Highway
Routing: Wyoming 30 travels from U.S. 16-20 and Wyoming 789 (P-34, Milepost 196.42) near Basin west to Burlington, then north to U.S. 14-16-20 (P-31, Milepost 85.66) near Emblem via Otto. This route serves several small communities and ranches to the southwest of Worland. Wyoming 30 also is an alternate to U.S. 16 and U.S. 20 between Emblem and Basin. The route of Wyoming 30 is "L" shaped. Mileposts: Mileposts increase from east to west along Wyoming 30. The first 1.74 miles are marked from 0.00 to 1.74. At Milepost 1.74, the mileposts change to 101.31 (BK=AH Equation). Wyoming 30 ends at Milepost 125.59.
Routing: Wyoming 31 travels from U.S. 16-20 and Wyoming 789 (P-34, Milepost 184.35) at Manderson east to Hyattville and Medicine Lodge State Archaelogical Site. Mileposts: Mileposts on Wyoming 31 increase from east to west (0.00 to 22.09).
Cold Springs Road
Routing: Wyoming 32 travels from U.S. 14-16-20 (P-31, Milepost 86.26) at Emblem north to U.S. 14A (P-34, Milepost 237.80) at Byron. Mileposts: Mileposts increase from north to south along Wyoming 32, beginning at the U.S. 14A junction: 0.00 to 2.89BK (Junction Wyoming 31), 100.00AH to 112.72 (Junction Wyoming 295), 112.72 to 123.42BK (realignment), and 122.16AH to 127.33 (Junction U.S. 14-16-20).
Routing: Wyoming 33 is a spur that travels from Wyoming 32 (Milepost 2.89BK=100.00 AH) south to Forester Gulch; becomes a Bureau of Land Management (BLM)-maintained route. Mileposts: Mileposts increase from north to south (2.89 to 4.28). The mileposts start at 2.89 because they are a continuation of the mileage form Wyoming 32 between Emblem and Forester Gulch.
Routing: Wyoming 34 travels from U.S. 30-287 near Bosler northeast to Interstate 25 and U.S. 87 Exit 73 just south of Wheatland via Morton Pass. Wyoming 34 follows State Control Route S-109 for its entire length. Wyoming 34 is split into seven sections: Bosler (mileposts 0-10), Morton Pass (mileposts 10-17), Sybille Canyon (mileposts 17-23), North Sybille Creek (mileposts 23-28.5), Bluegrass Creek (mileposts 28.5 and 36), Sybille Creek (mileposts 36-45), and Wheatland (mileposts 45-52).
Recent History: A six-year project lasted from 1992 through 1998 to replace sections of Wyoming 34. This project replaced sections of highway that date in some locations to the 1930s. Typically, the existing road measures only 22 to 24 feet wide, with little or no shoulder for the most part. New sections are generally 32 to 36 feet wide, which allows for a four to six-foot shoulder on both sides of the road. This new standard is common for many newer two-lane highways in Wyoming In general, the new highway sections follow the existing alignment of Wyoming 34. However, numerous curves are being flattened to improve sight distance and side slopes are being made gentler in various locations to add an extra margin of safety for travelers.
Older History: This route used to be known as Wyoming 26. Before U.S. 26 was extended west across Wyoming, it used to end at U.S. 87 just north of Wheatland. At that time (between 1926 and 1950), what is now Wyoming 34 was known as Wyoming 26. It may have been planned that Wyoming 26 would be an extension of U.S. 26, but that never happened. Instead, U.S. 26 was routed to Casper and Jackson in 1950, while Wyoming 26 was renumbered Wyoming 34 to avoid confusion.
Routing: Wyoming 35 is a short spur from U.S. 310 and Wyoming 789 (P-34, Milepost 243.19) near Cowley south into some ranching areas. Wyoming 30, 31, 32, 33, 35, 36, and 37 are clustered in Bighorn County.
Routing: Wyoming 36 provides a north-south bypass to the west of Basin between Wyoming 30 (Milepost 0.37) and U.S. 16-20 and Wyoming 789 (P-34, Milepost 199.27). The 1997 state map does not show this route, but DeLorme's 1992 map does. Mileposts: Mileposts increase from south to north (0.37 to 3.13). The 0.37 represents a continuation of mileposts from Wyoming 30.
Routing: Wyoming 37 travels from Alternate U.S. 14 (P-35, Milepost 2.45) east of Lovell north to just south of the Montana-Wyoming State Line near the Pryor Mountain Wild Horse Range to serve Bighorn Lake National Recreation Area. In Montana, the pavement continues north to Barry's Landing. Mileposts: Mileposts increase from Alternate U.S. 14 (Milepost 0.00) to 1.6 miles north of the National Recreation Area boundary. At that point, state maintenance along Wyoming 37 ends, at milepost 9.00.
Routing: Wyoming 50 travels from Interstate 90 Exit 124 and Business Loop I-90 and U.S. 14-16 (Milepost 124.26) in Gillette southwest to Wyoming 387 (Milepost 131.79) at Pine Tree Junction. Mileposts: Wyoming 50 mileposts run from north to south, from Business Loop I-90 south to Wyoming 387. Mileposts begin with 1.53 and end with 52.67. History: A minor realignment is corrected at 4.52BK=4.53AH, a difference of 0.01 of a mile. According to the 1980 Wyoming state map, Wyoming 50 used to be routed via 4J Road into Gillette. Sometime between 1980 and 1993, Wyoming 50 was transferred to Skyline Drive, which provides easier access to Interstate 90.
Skyline Drive; 4 J Road
Routing: Wyoming 51 travels from Interstate 90 and U.S. 14-16 Exit 128 (MP 128.09) and Business Loop I-90 (MP 127.57) in Gillette east to Moorcroft via Wyodak, Rozet, the Campbell County fairgrounds, some coal mines, and a power plant. Wyoming 51 is the old alignment for U.S. 14-16. It is signed as a secondary state highway, but not marked from the Interstate 90 interchanges (like most secondary state highway frontage roads, like Wyoming 374 and 76 along Interstate 80).Mileposts: Mileposts begin at 127.57 at the Interstate 90 interchange. WyoDOT has a temporary easement in place for Wyoming 51 between MP 130.26 and 132.53BK=132.01AH for the Wyodak coal mine. The BK=AH equation is used for the realignment of this section of highway. The Campbell-Crook County Line is at Milepost 146.90, and the route ends at Milepost 152.88, with its junction with Moorcroft's Business Loop I-90.
Routing: Wyoming 59 is a major north-south state highway that travels from Interstate 25 Exit 135 at Douglas north to the Montana State Line via Gillette. The highway continues north as Montana 59 until its junction with Montana 200 at Jordan, Montana. Wyoming 59 and Montana 59 serve Bill, Wright, Thunder Basin National Grassland, Gillette, Weston, Broadus, and Miles City. Wyoming 59 follows State Control Number P-43 for its entire length. History: Wyoming 59 used to be Wyoming 185 prior to 1936. Between 1936 and 1945, it was known as Wyoming 387. From 1945 on, the road was known as Wyoming 59. A 1947 Rand McNally map shows Wyoming 59 as Wyoming 87, but that seems to be an unlikely designation. Since Wyoming 59 continues in Montana as Montana 59, it is unclear if the 59 designation was first created by Montana or Wyoming.
Routing: Spur Wyoming 59 is a connector route follows the original alignment of Wyoming 59 through Douglas via Fourth Street. Although unsigned, the spur route begins at Wyoming 59 (P-43, MP 2.20) and travels south 0.45 of a mile to meet the city-maintained Fourth Street. From there, Fourth Street continues south to meet Business Loop I-25 and Business U.S. 20-26-87 (P-58, MP 138.85).
History: Wyoming 65 was decommissioned in favor of Wyoming 89.
Routing: Wyoming 70 travels from Wyoming 789 (Milepost 50.70) at Baggs east to Wyoming 230 (Milepost 38.20) at Riverside via Dixon (Mileposts 6.58 through 7.09), Savery, Medicine Bow National Forest, and Encampment, with a short section through Slater, Colorado between Mileposts 15.34 and 16.24. Guide: This short Colorado section (through Moffat County) is maintained by WyoDOT and is not officially part of the Colorado State Highway System despite it being constructed on Colorado land. Between the 1940s and the 1960s, Wyoming 70 connected with former Colorado 129, which used to connect U.S. 40 with Wyoming 70. The highway spends much of its time in scenic Medicine Bow National Forest (between Mileposts 21.25 and 51.10), and it is closed in winter, especially near Battle Pass (elevation 9,955 feet) due to copious snowfall. Two towns are on the eastern slope into the North Platte Valley: Encampment (Milepost 56.25) and Riverside (Milepost 57.92). The ending milepost at Junction Wyoming 230 is 58.16, and it is off from the actual route mileage (57.66 miles) because of a milepost equation (49.61BK=51.10AH). Wyoming 70 was upgraded to a paved, two-lane highway with full shoulders and passing areas over the top of the beautiful Battle Mountain Pass area (elevation 9,915 feet) by 1997-1998. It used to be much narrower and had more gravel and dirt sections. With the upgrade, there are turnouts all along this road with interpretive signs. Bridger Peak (elevation 11,007 feet) is nearby. The widening of the road between Baggs and Slater was completed in 2000.
Routing: Wyoming 71 travels from Interstate 80 and Wyoming 78 in Rawlins south to a point near the Teton Reservoir; from there south to the Medicine Bow National Forest boundary, it is Carbon County Route 401. From the boundary to Wyoming 70, it is Forest Service Road 801. The road is dirt and gravel between for the entire county and forest service portion. Forest Service Road 801 serves the famous Aspen Alley, which was featured on the cover of the 1995 Official Wyoming State Map.
Sage Creek Road
Routing: Wyoming 72 travels from Carbon County Road 402 in the town of Elk Mountain (south of Interstate 80) north to Hanna and Elmo via Interstate 80 Exit 255 and Junction U.S. 30-287. Mileposts: Wyoming 72 is unusual in that it is broken into two separate parts, but it maintains the same route number for both segments. Segment One runs from south to north as follows, leading from Junction U.S. 30-287 (Milepost 0.00) into Hanna (Milepost 0.71). Wyoming 72 ends at Milepost 3.02. Segment Two runs from north to south, beginning at Milepost 1.55 at 55 Junction U.S. 30-287, then heading south to Milepost 12.29 at Junction Interstate 80 and ending at Carbon County Route 402 in Elk Mountain at Milepost 15.98.
Routing: Wyoming 73 travels from U.S. 287 and Wyoming 789 (Milepost 33.26) at Lamont west to Bairoil (Milepost 4.64). Wyoming 73 extends across the Carbon-Sweetwater County at Milepost 2.59 but does not link to any other state highway once in Sweetwater County. Wyoming 70, 71, 72, 73, 74, 76, 77, and 78 are clustered in Carbon County.
Routing: Wyoming 74 is the bridge that carries Bridge Street over the North Platte River in Saratoga. The town of Saratoga maintains the few blocks of Bridge Street between Wyoming 130/First Street and the river. Beyond the North Platte River bridge, Bridge Street continues east as Carbon County Route 504. Mileposts: The section of Bridge Street maintained by the town between Wyoming 130 and the bridge approach is a distance of 0.09 mile. Wyoming 74 is neither signed nor mileposted, but it is one of the shortest state routes in Wyoming, with a distance of 0.13 mile, which is basically the bridge and its immediate approaches. History: At one time, this bridge was part of Wyoming 130 between Saratoga and Ryan Park, before that designation was moved south to its current routing.
Bridge Street over the North Platte River
History: Wyoming 75 was originally part of what is now Wyoming 487, but has since been decommissioned. It was created with the inception of the Wyoming secondary state route system during the early 1970s along the path of present Wyoming 487 between the two junctions of current Wyoming 77 in Shirley Basin. When Wyoming 487 was rerouted over Wyoming 75, old Wyoming 487 was recommissioned as Wyoming 77, and Wyoming 75 ceased to exist. This renumbering occurred in the mid-1970s.
Routing: Wyoming 76 is former U.S. 30-287 between Business Loop I-80/Rawlins east interchange (Exit 215) and East Sinclair interchange (Exit 221). Neither exit mentions Wyoming 76, but there are trailblazer signs. Spur Wyoming 76 links Wyoming 76 to Interstate 80 at the West Sinclair Interchange. History: In 1938, Wyoming 76 was the designation for Battle Mountain Road, which is the current Wyoming 70 route between Baggs and Riverside. At that time, Wyoming 70 was the current Wyoming 230 route from Walcott Junction south into Saratoga, then south through Riverside into Colorado, then northeast into Laramie via Woods Landing.
Lincoln Avenue and Old U.S. 30
Routing: Wyoming 77 runs from Wyoming 487 (Milepost 22.16) 22 miles north of Medicine Bow to Wyoming 487 (Milepost 46.03 near the Shirley Basin Rest Area (27 miles south of the Wyoming 220-487 junction). Wyoming 77 stays to the west of Shirley Basin over a mountain pass, while Wyoming 487 stays in the basin through the company town and coal mining area of Shirley Basin. Mileposts: Mileposts begin at 133.10 in the south and increase to the north. Wyoming 77 ends at Milepost 144.28.
Old Shirley Basin Road
Routing: Wyoming 78 travels from Wyoming 71 (Milepost 0.00) near the Higley Boulevard exit on Interstate 80 (Exit 214) in Rawlins south to the Wyoming State Penitentiary. Mileposts: Mileposts increase from north to south, with the Wyoming 71 junction the zero milepost and the southern end of Wyoming 78 at Milepost 1.23. The interchange with Interstate 80 is at Milepost 0.15.
History: What once was Wyoming 87 is now Wyoming 789 from Baggs (near the Colorado-Wyoming state line) north to U.S. 30 at Creston Junction. Wyoming 87 existed from around 1930 until 1940, when it was replaced by Wyoming 330. In 1954, Wyoming 330 became Wyoming 789. This may have been planned in the early days of the U.S. highway system as a southern extension of U.S. 87 when it used to begin in Rawlins and head north to Montana via Yellowstone (87W) and Casper (87E). Wyoming 87 may have reappeared briefly around 1947 as a designation for what is now Wyoming 59 between Douglas and Gillette.
Wyoming 789/Baggs Road
Routing: Wyoming 89 has several segments to its route: from Interstate 80 and U.S. 189 Exit 5 in Evanston north to the Utah-Wyoming State Line near Almy. Once in Utah, the highway becomes Utah 16. The pavement continues south of I-80 as Wyoming 150. Wyoming 89 follows State Control Route 10 for its entire length. The second segment is from Utah 30 at the Utah-Wyoming State Line just west of Sage east to U.S. 30 at Sage, and the third segment is from Sage north to one-half mile east of the Idaho-Wyoming State Line, where Wyoming 89 and U.S. 30 run concurrently through Cokeville. From the U.S. 30 split north to the Idaho-Wyoming State Line, Wyoming 89 "continues" as Idaho 61 for a very short time until it ends at U.S. 89 in Geneva, Idaho.
History: According to the original network map of Wyoming State Highways in 1924, Wyoming 89 was originally defined as Wyoming 65. This changed with the introduction of U.S. routes in 1926. The route between Cokeville and Star Valley was renamed Wyoming 89, while the section south of Sage remained Wyoming 65. This was done in the hopes that U.S. 89 (which had a northern terminus in central Utah at that time) would be extended north into Wyoming. U.S. 89 was extended in 1936 along old Wyoming 287. Wyoming 89 was recommissioned as Wyoming 91 to avoid confusion between the two highways, while Wyoming 65 kept its original number. But this was short-lived. Within a few years, U.S. 89 was rerouted to its current route in Utah and Idaho, and U.S. 189 was created along old Wyoming 287. I think that Wyoming was upset that they lost so much of U.S. 89, so they recommissioned Wyoming 89 over both Wyoming 65 and Wyoming 91.
Wyoming 89 jumps in and out of Wyoming three times, and it almost crosses a fourth and fifth time. It maintains its number in Wyoming, but it is known as Utah 16, Utah 30, and Idaho 61 when it leaves the state. Other routes that jump in and out of the state include U.S. 212 (in Colony and again along the Beartooth
Highway near Yellowstone National Park) and Wyoming 230 (which runs through "Three Way Junction" -- the junction of Colorado 125 and Colorado 127 south of the Snowy Range).
Routing: Wyoming 90 travels from Business Loop I-25 and U.S. 20-26-87 (S-505, Milepost 162.05) near Interstate 25 Exit 160 at Glenrock south toward Boxelder. Mileposts: There is no interchange with Interstate 25, only a grade separation (Milepost 0.86). Wyoming 90 ends at Milepost 3.00 and becomes Converse County Route 17 before the road actually reaches Boxelder.
Routing: Wyoming 91 travels from Wyoming 94 (Milepost 0.51) near Interstate 25 Exit 140 in Douglas southwest to Junction Converse County Route 11 (Spring Canyon Road) southwest of LaPrele Reservoir, near the Medicine Bow National Forest boundary. Changes into Converse County Route 24 (Cold Springs Road) near the La Prele Creek crossing. Wyoming 90, 91, 93, 94, 95, and 96 are clustered in Converse County. Mileposts: Mileposts increase from northeast to southwest, with the zero milepost at Junction Wyoming 94 and Milepost 23.10 at the end.
Cold Springs Road
History: Wyoming 91 was also used historically for what is now designated as Wyoming 89 in Lincoln County.
Routing: Wyoming 92 travels from U.S. 26 in downtown Torrington southeast to the Nebraska-Wyoming State Line via Huntley; continues east as Nebraska 92, Iowa 92, and Illinois 92 to its terminus in Illinois. U.S. 26 parallels Route 92 fairly closely for at least the last 100 miles. A portion of Nebraska 92 near Lake McConaughey in Nebraska was known as U.S. 26N for a while; that designation is long gone. Wyoming 92 follows State Control Number 807 for its entire length.
Routing: Wyoming 93 travels from Wyoming 59 (Milepost 0.51) in Douglas northwest to Converse County Route 32 (Highland Loop Road) in the Highland Flats area north of the Fort Fetterman State Historical Site. Mileposts: The mileposts increase from south to north. The highway begins at Milepost 0.03 at Junction Wyoming 59, has one realignment at 9.26BK=9.27AH, meets Wyoming 95 at Milepost 18.24, and ends at Milepost 26.14.
Routing: Wyoming 94 travels from Business Loop I-25 (P-58, Milepost 140.08) just west of Douglas south toward Esterbrook. Changes into Converse County Route 5 ten miles north of Esterbrook. Mileposts: Mileposts increase from north to south, with Milepost 0.00 at Junction Business Loop I-25. Junction Wyoming 91 is at Milepost 0.51, and the highway ends at Milepost 16.61. There are two realignments: 0.46BK=0.43AH and 14.55BK=14.59AH.
Routing: Wyoming 95 travels from Interstate 25 at Exit 165 (Milepost 0.00/Deer Creek Interchange) at south of Glenrock northeast to the junction with Wyoming 93 and Converse County Route 31 (Ross Road) via Rolling Hills and the Top of the World near the Rolling Creek at Milepost 18.88. There is a 0.65-mile concurrent section with Business Loop I-25 in Glenrock.
Monkey Mountain Road; Glenrock-Ross Road
Routing: Wyoming 96 travels from Interstate 25 and U.S. 20-26-87 at Exit 146 near La Prele south to Wyoming 91 (Milepost 2.99) near Douglas. Mileposts: Mileposts increase east to west, with Milepost 0.00 at Junction Interstate 25 and Milepost 3.11 at Wyoming 91.