STATE ROUTE DESCRIPTION COUNTY MILEAGE NAMING
Routing: Wyoming 210 travels from Interstate 80 and U.S. 30 (Exit 323) at the Sherman Hill Summit and Lincoln Memorial Rest Area east to Interstate 25 and U.S. 87 (Exit 10) in Cheyenne via Curt Gowdy State Park and the Pole Mountain unit of the Medicine Bow National Forest.
Mileposts: Mileposts increase from east to west. Milepost 0.00 is at the junction of Wyoming 210 with Interstate 25 and U.S. 87. It meets Missile Drive at Milepost 0.16 (this is former Wyoming 226). There is a milepost equation at 1.73BK=2.19AH. Wyoming 210 passes by the F.E. Warren Air Force Base Boundary at Milepost 2.19. At Milepost 2.94, it meets Wyoming 222. The Laramie-Albany County Line is at Milepost 25.82, and the boundary for Medicine Bow National Forest is at Milepost 26.45. The route ends at Milepost 37.79, which is the junction of Wyoming 210 with Interstate 80 and U.S. 30 (Exit 323) near the State of Wyoming Information Center.
Guide: Wyoming 210 travels through the rugged scenery of the Pole Mountain area adjacent to Vedauwoo. Some of the region’s best rock climbing is found in this area, near the summit area. There used to be a ski area here (Happy Jack Ski Area), but it closed due to a lack of consistent snow. At Curt Gowdy State Park, there are reservoirs that supply water to Cheyenne and Laramie. During the cold winter months, these lakes can freeze solid.		 Laramie, Albany 37.33 Happy Jack Road
Routing: Wyoming 211 travels from Wyoming 219 (Old U.S. 85-87) north of Cheyenne (near Interstate 25 and U.S. 85-87, Exit 16) northwest through Iron Mountain, Federal, Horse Creek, and Lambert before reconnecting to Interstate 25 and U.S. 87 near Chugwater. Wyoming 211 has a 20-mile route gap between Milepost 42.94 and at Milepost 63.01; an unpaved county route makes the connection. The section of Wyoming 211 in Platte County Line follows Iron Mountain Road and Jordan Road (County Road 106-2) from Iron Mountain via Diamond. The northern section of Wyoming 211 was previously known as Wyoming 322.
Mileposts: Wyoming 212 begins at Milepost 0.00 at its junction with Wyoming 219 (Milepost 4.01). At Milepost 0.51 its meets Interstate 25 and U.S. 85-87 (MP 16.23), then meets former Wyoming 222 at Milepost 3.80. The route temporarily ends at Milepost 42.94 and resumes at Milepost 63.01. The town of Chugwater is at Milepost 63.03, and it meets Interstate 25, U.S. 87, Business Loop I-25, Business U.S. 87, and Wyoming 321 at Milepost 63.95. This interchange (Exit 57) marks the northern terminus of Wyoming 211.		 Laramie, Platte 43.88 Horse Creek Road; Iron Mountain Road
Routing: Wyoming 212 is College Drive, traveling from Interstate 25 and U.S. 87 Exit 7 east and north around Cheyenne, then west along Four Mile Road west to Wyoming 219 (Old U.S. 85-87 and Old Yellowstone Highway) north of Cheyenne. For the first two miles (between Interstate 25 and U.S. 85/Central Avenue), Wyoming 212 is concurrent with Business Loop I-25 and Business U.S. 87. Between the Interstate 80 interchange and U.S. 30 (Lincolnway), Wyoming 212 is concurrent with Business Loop I-80.
Guide: Wyoming 212 begins at Milepost 0.00 at its junction with Interstate 25 and U.S. 87 (MP 7.85), which is adjacent to a State of Wyoming Information Center. Business Loop I-25 and Business U.S. 87 is cosigned with Wyoming 212 for this initial stretch. At Milepost 2.71 is the junction with Greeley Highway, U.S. 85 (P-25, MP 7.31). At this intersection, Business Loop I-25 and Business U.S. 87 turn north along U.S. 85. Wyoming 212 continues alone from here, meeting Wyoming 221 (Fox Farm Road) at Milepost 5.09 and Interstate 80 at Milepost 5.62 at the Sun Valley Interchange (MP 364.00). From this interchange north to Milepost 6.88 (U.S. 30, P-56, MP 365.23), Business Loop I-80 is merged with Wyoming 212. The route ends at Milepost 13.57, which is the junction between Wyoming 212 and Wyoming 219 (MP 2.00).		 Laramie 13.57 College Drive; Four Mile Road
Routing: Wyoming 213 travels from Interstate 80 and U.S. 30 Exit 386 north through Burns to U.S. 85 in Laramie County. Until 2009, Wyoming 213 only connected Interstate 80 with Burns, while the route north to U.S. 85 was a county-maintained road. The final configuration of Wyoming 213 will include a bypass that runs east of Burns with a new railroad crossing. For now, however, Wyoming 213 passes through downtown Burns, where the connection for Wyoming 213 is knowing as Main Street. Within downtown Burns, Wyoming 213/Main Street is maintained locally, as Main Street is divided by an elongated park-like median and is not built to state highway standards. Crossing the railroad tracks north of downtown Burns, Wyoming 213 meets Laramie County Road 148 (which travels west) and former Laramie County Road 149. At this intersection, Wyoming 213 curves east onto former Laramie County Road 149, which turns north after paralleling the railroad tracks. The extension of Wyoming 213 north absorbed former Laramie County 149 (Burns Road North) north to U.S. 85 in 2009.
Mileposts: Milepost 0.00 is at Interstate 80 and U.S. 30 (MP 386.39) and Wyoming 214 (MP 0.00). It enters Burns at Milepost 2.11, and it used to end at Milepost 2.61.		 Laramie approx 19 miles Burns Road
Routing: Wyoming 214 travels from Interstate 80 and U.S. 30 Exit 386 south to Laramie County Road 203-1 (Chalk Bluffs Road) in Carpenter. The highway continues north of Interstate 80 as Wyoming 213 and previously linked to former Colorado 155.
Mileposts: Milepost 0.00 is at the junction with Interstate 80 and U.S. 30 (MP 386.39) and Wyoming 213 (MP 0.00). The mileposts increase from north to south, and it enters Carpenter at Milepost 8.33. The state route ends a short distance thereafter, at Milepost 8.39.		 Laramie 8.39 Carpenter Road
Routing: Wyoming 215 travels from Business Loop I-80 and Business U.S. 30 in Pine Bluffs north to Wyoming 216 near Albin. North of Albin, continues as Laramie County 162-2 north to Wyoming 151 near La Grange.
Mileposts: The state highway begins at Milepost 0.00 at its junction with Business Loop I-80 and U.S. 30 (MP 401.52), and it crosses over a Union Pacific Railroad Separation at Milepost 0.22. A realignment is accounted for at Milepost 0.93BK=0.88AH, and Wyoming 215 leaves Pine Bluffs at Milepost 1.80. It ends at its junction with Wyoming 216 at Milepost 17.14.		 Laramie 17.19 Highway 215
Routing: Wyoming 216 travels from U.S. 85 (P-25; MP 43.02) twenty-six miles northeast of the Interstate 25/U.S. 85 split east to Laramie County Road 164-3 (State Line Road) east of Albin, ending at the Wyoming-Nebraska State Line. Wyoming 216 connects to Wyoming 215, which travels south to U.S. 30 in Pine Bluffs.
Mileposts: Wyoming 216 begins at Milepost 0.00 at its junction with U.S. 85 (P-25, MP 43.02), passes through Albin between Mileposts 15.83 and 16.18, and it meets Wyoming 215 at Milepost 16.47. Wyoming 216 ends at the Nebraska State Line at Milepost 18.54.		 Laramie 18.54 Albin Road
History: A historical routing of Wyoming 216 was created in 1926, the same year U.S. 16 and Wyoming 116 were created. Although it began life as a state route, it was quickly recommissioned as U.S. 216. However, in 1936, U.S. 216 was recommissioned as part of U.S. 16, and the 216 designation was deleted. Weston, Crook N/A –
History: Wyoming 217 was formerly the state highway from Hillsdale south to Crow Creek with an interchange at Interstate 80 and U.S. 30 Exit 377.
Mileposts: Milepost 0.00 was at Interstate 80 (MP 377.35)/Hillsdale Interchange. There is a small milepost equation (MP 0.07BK=0.06AH), and the route ended at Milepost 4.42 for a total distance of 4.43 miles. The route was decommissioned in 2009; all state route marker signs have been removed, and the route no longer appears on the Wyoming Official State Highway Map.		 Laramie 4.43 –
History: Wyoming 218 was formerly the state highway from Interstate 80 and U.S. 30 Exit 342 south to the town of Harriman and the Union Pacific Railroad. Today, all of Harriman Road is a Laramie County maintained route until entering Colorado, where it becomes a Larimer County maintained route all the way to its junction with U.S. 287 south of Virginia Dale. Most of the Wyoming portion of this county route is unpaved.
Mileposts: The mileposts used to increase from north to south, but the previously state-maintained portion only went for 1.77 miles. The route was decommissioned in 2009; all state route marker signs have been removed, and the route no longer appears on the Wyoming Official State Highway Map.		 Laramie approx 2 miles Harriman Road
Routing: Wyoming 219 is old U.S. 85-87 north of Chyenne. It travels from Business Loop I-25, U.S. 85, and Business U.S. 87 (Central Avenue) north to U.S. 85 near Interstate 25 Exit 17. Portions of the route serve as a frontage road. The highway continues north of its northern terminus as Laramie County Road 124-2 (Old Yellowstone Road), which continues north to the Platte-Laramie County Line.
Mileposts: Wyoming 219 begins with its zero milepost at Business Loop I-25, U.S. 85, and U.S. 87 (P-25, MP 11.79). At Milepost 0.25, the divided highway ends. The northern city limits of Cheyenne at at Milepost 1.35, and Wyoming DOT begins its maintenance at Milepost 1.99. At Milepost 2.00, Wyoming 219 meets Wyoming 212 (Four Mile Road), and it meets Wyoming 211 at Milepost 4.00BK=4.01AH. At Milepost 5.49, the route comes to its end at U.S. 85 (P-25; MP 17.65).		 Laramie 5.48 Yellowstone Road
Routing: Wyoming 220 travels from U.S. 287 and Wyoming 789 at Muddy Gap Junction northeast to Interstate 25 and U.S. 20-26-87 in Casper.
Guide: Wyoming 220 lies along the historic Oregon Trail. Independence Rock, a famous resting stop known as “The Great Register of the Desert,” is located along Wyoming 220 southwest of Casper. Pioneers inscribed their names into the rock, and those names can still be read today. Further west along Wyoming 220 is Devil’s Gate, a well-known landmark along the Oregon Trail. The gate is a narrow passageway for the Sweetwater River as it travels the extreme north end of the Red Desert. At the western end of the route, Wyoming 220 curves south onto U.S. 287 and Wyoming 789 south at Muddy Gap. The Oregon Trail continues northwest via U.S. 287 and Wyoming 789 north. The Pathfinder and Alcova Reservoirs are also along Wyoming 220; both of these resevoirs are fed by the North Platte River, which follows Wyoming 220 as it heads into Casper. The drive between the Wyoming 487 junction and Casper is especially scenic, as the North Platte River heads through the Narrows. Near here is Bessemer Bends, which was a popular place for Oregon Trail wagoneers to cross the North Platte due to its shallow level in this area. Once in the city of Casper and northeast of Wyoming 258/Wyoming Boulevard, portions of the route are city maintained but are signed for route continuity purposes.
History: Between 1926 and 1938, what is now Wyoming 220 was part of U.S. 87E. In 1938, U.S. 87E was renamed as Wyoming 220. There have only been a few routing changes for Wyoming 220 since then, except that it was connected to Interstate 25 when the freeway was completed through Casper.		 Carbon, Natrona 72.79 Alcova Highway
History: Wyoming 221 used to follow Fox Farm Road from Business Loop I-25, U.S. 85, and Business U.S. 87 (Central Avenue/Greeley Highway) east to Wyoming 212 (College Avenue). Wyoming 221 was 1.84 miles long. This east-west route paralleled Interstate 80 about one-half mile south of the Interstate. The route was decommissioned in 2009; all state route marker signs have been removed, and the route no longer appears on the Wyoming Official State Highway Map. Laramie 1.84 Fox Farm Road
Routing: Wyoming 222 travels from Wyoming 225/Otto Road (Old U.S. 30 west of Cheyenne) north to Wyomingn 210/Happy Jack Road. F.E. Warren Air Force Base (Randall Avenue).
Mileposts: Milepost 0.00 is the southern terminus of this route at Wyoming 225, Otto Road (MP 358.01). The Interstate 80 (Round Top) Interchange is at Milepost 0.79. At Milepost 1.81, Wyoming 222 intersects Wyoming 210/Happy Jack Road (MP 2.94). The segment of Wyoming 222 north of Wyoming 210 used to be in the state highway system, but it has since been decommissioned. Prior to Wyoming 221’s retraction, Wyoming 221 used to meet the F.E. Warren Air Force Base Boundary at Milepost 2.08, and Wyoming DOT maintenance used to end at Milepost 4.07. This former section of state highway used to end at Milepost 8.29 at its junction with Wyoming 211 (MP 3.80).		 Laramie 1.81 Fort Access Road
Routing: Wyoming 223 travels from Interstate 25 Exit 2 east to U.S. 85 (Greeley Highway) south of Cheyenne. Westbound, this route is signed as “To Interstate 25.” Milepost 0.00 is at Interstate 25 (MP 2.66). There is a Union Pacific Railroad Separation at Milepost 0.86, and the route ends at its junction with U.S. 85 (P-25, MP 4.12) at Milepost 5.69. Wyoming 223 is an old alignment of U.S. 87. Laramie 5.69 Terry Ranch Road
Routing: Wyoming 224 travels from Interstate 25/U.S. 87 and Business Loop I-25 and U.S. 85-87B/Central Avenue west to the Wyoming Department of Transportation Headquarters and the Wyoming Department of Fish & Game offices. Traveling north on Business Loop I-25, U.S. 85, and Business U.S. 87 (Central Avenue), Wyoming 224 begins upon crossing over Interstate 25 and proceeding straight ahead on Central Avenue for the last quarter of a mile. Wyoming 224 is not signed.
Mileposts: Milepost 0.00 is the junction with Interstate 25 (MP 12.70) and Business Loop I-25, U.S. 85, and Business U.S. 87 (P-25, MP 12.61). The Wyoming Department of Fish and Game Headquarters is at Milepost 0.05, and the Wyoming Department of Ttransportation entrance is at Milepost 0.06. The main visitors parking area in the entrance is at Milepost 0.07, and other parking areas are at Milepost 0.09. The route ends at Milepost 0.12 at F.E. Warren Air Force Base, which also provides golf course access.		 Laramie 0.12 Wyoming Department of Transportation Headquarters Entrance
Routing: Wyoming 225 travels from Interstate 80 and U.S. 30 Exit 348 to Interstate 80 and U.S. 30 Exit 358 (West Lincolnway; west Cheyenne business loop).
Mileposts: The mileposts on Wyoming 225 are based on U.S. 30, so they begin with Milepost 348.36 at its junction with Interstate 80 and U.S. 30 (MP 348.36). At Milepost 358.01, Wyoming 225 meets Wyoming 222 (MP 0.00), and the divided highway begins at Milepost 359.20. Wyoming 225 ends at Milepost 359.55.
History: Wyoming 225 is a portion of the original U.S. 30 route before Interstate 80 was built and the U.S. 30 designation transferred to the freeway. Most of the remainder of U.S. 30 between Laramie and Cheyenne either (1) has been directly overlaid by the Interstate 80 freeway, (2) serves as a frontage road to Interstate 80, or (3) has been abandoned and fallen into disrepair (with some abandoned segments of old U.S. 30 visible yet inaccessible from Interstate 80).		 Laramie 11.21 Otto Road
History: Wyoming 226 used to follow Missile Drive, which is now part of Wyoming 210. When Wyoming 210 used to follow the Old Happy Jack Road alignment, it did not intersect Interstate 25 and ended at Business Loop I-80 (Lincolnway). To alleviate this problem, Wyoming 210 was routed over Missile Drive and now ends at Interstate 25. Prior to this rerouting, Missile Drive was designated as Wyoming 226. Laramie approx 1 mile Missile Drive

Routing: Wyoming 230 has two segments. The western segment travels from Interstate 80 and U.S. 30-287 at Walcott south along a shared alignment with Wyoming 130 to a point south of Saratoga, then proceeds south solo southeast to the Colorado-Wyoming state line via Riverside near Encampment in Carbon County. Wyoming 230 resumes in Albany County, emerging from Colorado-Wyoming state line, then turning northeast toward Laramie, ending at Business Loop I-80 and U.S. 30-287/Third Street near downtown Laramie. The implied connection between the two segments is achieved via Colorado 125 and Colorado 127 through Three Way. Notably, the last four miles of this route are on a shared alignment with Wyoming 130 (via Snowy Range Road); this is one of the rare cases where two state routes overlap in Wyoming. The mileage of 78.74 excludes the Colorado mileage via Colorado 125 and 127.

Guide: Leaving the vicinity of Saratoga in the Platte Valley, Wyoming 230 slowly climbs out of the Platte Valley to a crest of over 8,000 feet above sea level. Wyoming 230 passes several ranches before entering Colorado. Once in Colorado, Wyoming 230 changes into Colorado 125 and meets Colorado 127 at Three Way. To reconnect to Wyoming 230, turn northeast on Colorado 127 back to the state line (or proceed south on Colorado 125 to Walden). Upon reentering the state, Wyoming 230 climbs into the southeastern edge of the Snowy Range Mountains, passing near the forested lands near Fox Park and Woods Landing. Jelm Mountain, home of the University of Wyoming observatory, is located just off Wyoming 230 (via Wyoming 10). From the Jelm Mountain area, Wyoming 230 descends into the Laramie Basin and eventually meets Wyoming 130 on the western edge of Laramie. The two state routes continue together on a shared alignment into Laramie as Snowy Range Road. After an interchange with Interstate 80, Wyoming 130-230 serve the main entrance into Wyoming Territorial Prison State Historic Site. The mileage total below excludes the western overlap with Wyoming 130 between Saratoga and Walcott.

 Carbon, Albany 78.74 Rivers Road
Routing: Wyoming 231 travels from U.S. 30 near Cokeville west into the town of Cokeville. Past Cokeville, the route is designated as Lincoln County Road 207 (Cokeville-Utah Road).
Mileposts: Milepost 0.00 is at the junction with U.S. 30 (P-12, MP 10.58) and Wyoming 232 (MP 0.00). The route ends at Milepost 0.60 at the city limits of Cokeville.		 Lincoln 0.60 Cokeville-Utah Road
Routing: Wyoming 232 travels from From U.S. 30 at Cokeville northeast to Button Flat. A non-state highway continues north toward the Commissary Ridge of the Bridger-Teton National Forest. Serves a Fish Hatchery.
Mileposts: Milepost 0.00 is at the junction of Wyoming 232 with U.S. 30 (P-12, MP 10.58) and Wyoming 231 (MP 0.00). The city limits of Cokeville are at Milepost 0.09, and the route ends at Milepost 12.22.		 Lincoln 12.22 Smiths Fork Road
Routing: Wyoming 233 travels from U.S. 189 at Frontier (north of Kemmerer) northeast to the east shore of Lake Viva Haughton. Lincoln County Road 305 continues along the path of Wyoming 233 beyond Lake Viva Haughton; it leads to the Commissary Ridge of the Bridger-Teton National Forest.
Mileposts: The route begins at Milepost 0.00 at its junction with U.S. 189 (P-11, MP 38.07). It leaves Kemmerer at Milepost 0.30, then meets former Wyoming 234 (Airport Spur) at Milepost 1.10. There is a milepost equation at 1.56BK=1.95AH, and the route ends at Milepost 19.68.		 Lincoln 19.29 Hams Fork Road
History: Wyoming 234 used to travel from Wyoming 233 just north of Kemmerer west to the Kemmerer Municipal Airport. Wyoming 234 is not listed in the 1998 Wyoming State Highway Route Log and thus is maintained by Lincoln County. Lincoln Approx 1 mile Kemmerer Airport Spur (Lincoln County Road 234)
Routing: Wyoming 235 travels from U.S. 189 at LaBarge and travels northwest to the Lincoln-Sublette County Line and Calpet. North of Calpet, the roadway continues as Sublette County Road 134 (La Barge-Calpet Road). Wyoming 235 primarily serves oil refineries.
Mileposts: The route begins at U.S. 189 (P-11, MP 84.87) at Milepost 0.00, and it continues through La Barge (Milepost 0.62) to the Sublette County Line (Milepost 3.89). It ends at Milepost 4.49, where it reaches Calpet.		 Lincoln, Sublette 4.49 –
Routing: Wyoming 236 travels from U.S. 89 west to Lincoln County Road 140 (Bitter Creek Road) in Fairview in Starr Valley. West of there, the highway continues as Lincoln County Road 141/Crow Creek Road as a county-maintained route.
Mileposts: Milepost 0.00 is at the junction with U.S. 89 (P-10, MP 82.98). A milepost equation is placed at 0.08BK=0.00AH, Wyoming 241. The route ends at Milepost 2.52 in Fairview.		 Lincoln 2.60 –
Routing: Wyoming 237 travels from U.S. 89 at Grover west to Wyoming 238 at Auburn in Starr Valley. The roadway continues northeast of Grover as Forest Service Road 10081 (Bedford-Turnerville Road) into Bridger-Teton National Forest and Turnerville.
Mileposts: The route begins at its zero milepost at U.S. 89 (P-10, MP 89.97) in Grover. It meets Wyoming 238 at Milepost 3.28, and it ends in Auburn at Milepost 3.42.		 Lincoln 3.42 –
Routing: Wyoming 238 travels from U.S. 89 at Afton northwest to Wyoming 237 at Auburn, then northeast back to U.S. 89 near the Narrows, serving Afton Municipal Airport in Starr Valley.
Mileposts: Milepost 0.00 is the junction with U.S. 89 (P-10, MP 94.12), and it intersects Wyoming 237 at Milepost 3.88. Wyoming 238 enters Afton at Milepost 11.83, and it ends at Milepost 12.08 where it rejoins U.S. 89 (P-10, MP 84.98).		 Lincoln 12.08 –
Routing: Wyoming 239 travels from U.S. 89 between Etna and Thyne west to the Idaho State Line near Freedom, where it connects to Idaho 34 via north-south State Line Road (which is not part of either state highway system). Idaho 34 travels west and then south to Soda Springs. East of U.S. 89, the highway continues as Prater Canyon Road (Lincoln County Road 116). Lincoln 1.64 Highway 239
Routing: Wyoming 240 travels from U.S. 30 at Opal north to U.S. 189 21 miles northeast of Kemmerer, acting as a bypass for travelers connecting from U.S. 30 west to U.S. 189 north.
Mileposts: Mileposts increase from U.S. 30 toward U.S. 189.		 Lincoln 12.28 Opal Road
Routing: Wyoming 241 travels from U.S. 89 at Smoot north to U.S. 89 two miles south of Afton near the Wyoming 236/U.S. 89 junction. This may be an old alignment of U.S. 89. Lincoln 4.27 Highway 241
History: Wyoming 250 used to run as a spur route from Wyoming 487 north to Freeland. This route was decommissioned sometime between 1978 and 1990. It was just under two miles long. Natrona Approx 2 miles –
Routing: Wyoming 251 travels from Business Loop I-25 and Business U.S. 20-26-87 in Casper south to the Casper Mountain Summit Area (including Hogadon ski area; elevation 8,485 feet above sea level). The first two miles of the route are locally maintained (not part of the state highway system). After the southern end of the state highway, a county road continues southwest of the Casper Mountain area as Natrona County Road 505 (Circle Drive). Natrona County Road 505 links to Natrona County Road 401, which links to Wyoming 487 (Two Bar Road).
Mileposts: The mileposts on Wyoming 251 increase from north to south. Milepost 0.03 is Business Loop I-25 and Business U.S. 20-26-87 (P-34, MP 1.63). There is an equation at 0.10BK=0.00AH to accommodate a route extension. State maintenance begins at Milepost 2.01, and Wyoming 251 meets Wyoming 258 (Casper Beltline) at Milepost 3.03. Wyoming 251 leaves Casper at Milepost 3.58, and it intersects Wyoming 252 at Milepost 4.94. There is another equation at 7.48BK=7.50AH, and the route ends at Milepost 8.91 on Casper Mountain.		 Natrona 8.96 Casper Mountain Road; Wolcott Road
Routing: Wyoming 252 travels from Wyoming 251 (Milepost 4.94) in Casper north to Wyoming 258 (Milepost 11.91).
Mileposts: The mileposts on Wyoming 252 increase from south to north. The route begins at its Wyoming 251 at Milepost 0.00, and the route ends at Wyoming 258, Milepost 4.37. It enters Casper at Milepost 3.99.
Guide: Wyoming 251 features an odd area at the foot of Casper Mountain. At the bottom of the hill just northwest of the intersection with Wyoming 251, stop your car. Then put it in neutral and watch your car go up the hill!		 Natrona 4.37 Gothmore Park Spur, Garden Creek Road, Poplar Drive
Routing: Wyoming 253 travels from U.S. 20-26-87 (U-505, MP 3.93) at Evansville southeast to a split into Natrona County Road 606 (Hat Six Road) and County Road 607 (Smith Creek Road) near the Natrona-Converse County Line. The state highway continues north of U.S. 20-26-87 as Wyoming 256.
Mileposts: The mileposts increase from north to south. Milepost 0.00 is the junction with U.S. 20-26-87 (U-505, MP 184.06) and Wyoming 256 (MP 0.00). At Milepost 0.48 is the junction with Interstate 25 at the Hat Six Interchange/Milepost 182.53. The route ends at Milepost 10.90.		 Natrona 10.90 –
Routing: Wyoming 254 travels from Business U.S. 20-26 (Yellowstone Highway) in Casper north to Interstate 25 and U.S. 87 Exit 191 near Bar Nunn.
Mileposts: Mileposts increase from south to north. Milepost 0.00 is Business U.S. 20-26 (P-34, MP 3.93), and the Mills northern city limit is at Milepost 0.79. The junction with U.S. 20-26 (P-34 Spur, MP 2.09, Old U.S.87 and Salt Creek Interchange) is Milepost 1.40, and a milepost equation is at 1.49BK=1.46AH. The port of entry is at Milepost 1.59, and the route ends at its junction with Interstate 25 and U.S. 87 (Wardwell Road Interchange, Exit 191) at Milepost 4.06.		 Natrona 4.06 –
Routing: Wyoming 255 used to follow Center Street from Business U.S. 20-26 (P-34, MP 1.70) north to Interstate 25 and U.S. 20-26-87 Exit 188A in Casper. Former Wyoming 255 is signed as Business Loop I-25 and Business U.S. 87. The mileposts increase from south to north. The 2012 Wyoming Reference Marker Guide omitted this route, which indicates that this route has been decommissioned and shifted to the city of Casper for roadway maintenance despite Center Street’s role as part of the Casper Business Loop.
Mileposts: The zero milepost is actually Milepost 0.17 at the junction with Business U.S. 20-26. There is a Burlington Northern Santa Fe (BNSF) Railroad Separation at Milepost 0.44, and the route ends at its junction with Interstate 25 (Exit 188) at Milepost 0.65.		 Natrona 0.48 Center Street
Routing: Wyoming 256 travels from U.S. 20-26-87 in Evansville northeast into mining areas north of the Ednass Kimball Wilkins State Park. The state highway continues south of Interstate 25 as Wyoming 253.
Mileposts: The mileposts increase from south to north. Milepost 0.00 is at U.S. 20-26-87 (U-505, MP 184.06) and Wyoming 253 (MP 0.00), and Milepost 2.67 marks the end of Wyoming 256.		 Natrona 2.67 Cole Creek Road
Routing: Wyoming 257 is the Casper West Belt Route, which begins at Wyoming 220 and extends northeast to end at U.S. 20-26. The Wyoming Department of Transportation constructed this two-lane, concrete route between 2012 and 2015; it fully opened to traffic on December 31, 2015. Natrona 7.50 Casper West Belt Route
Routing: Wyoming 258 is Wyoming Boulevard, which travels from Business U.S. 20-26 (Yellowstone Highway) in Mills south to meet Wyoming 220 (Casper-Alcova Highway or CY Avenue), Wyoming 251, and Wyoming 252. At 252 it turns northeast to finally meet Interstate 25 and U.S. 20-26-87 at Exit 185 in east Casper near Evansville. Wyoming 258 (“Wyoming Boulevard” or “Outer Drive”) acts as a two-lane beltway around the western, southern, and eastern sides of Casper.
Mileposts: Mileposts increase from south to north. The route begins at Milepost 7.85 at the Northern City Limits, Mills; U.S. 20-26 (P-34, MP 4.52). From there, the route crosses the Southern City Limits of Mills and Northern City Limits of Casper at Milepost 8.74. At the junction with Wyoming 220, there is a realignment (10.00BK=10.01AH). At Milepost 11.91, the route meets Wyoming 252 (MP 4.37) and at Milepost 12.65, the route meets Wyoming 251 (MP 3.03). Wyoming 258 meets Interstate 25 (Exit 185) at Milepost 18.22, and it enters Evansville at Milepost 18.35. Wyoming 258 ends at U.S. 20-26-87 (U-505, MP 186.88) at Milepost 18.45.		 Natrona 10.59 Casper Beltline; Wyoming Boulevard
Routing: Wyoming 259 travels from Interstate 25 and U.S. 87 Exit 210 north to Wyoming 387 between Midwest and Edgerton. This is former U.S. 87.
Mileposts: The mileposts increase from south to north. Milepost 10.08 marks the beginning at Interstate 25 and U.S. 87. The route has a small realignment equation at 10.87BK=10.95AH, and it ends at Milepost 28.21, which is the junction with Wyoming 387. Wyoming 251, 252, 253, 254, 255, 256, 258, and 259 are clustered in Natrona County.		 Natrona 18.05 –
Routing: Wyoming 270 travels from U.S. 26 at Guernsey north to Manville and Lance Creek and east to U.S. 18-85 north of Lusk.
Mileposts: The mileposts increase from south to north. The mileposts begin at Milepost 495.47 at the junction with U.S. 26 (P-27, MP 16.55). At Milepost 499.83, the route passes by the southern city limits of Hartville, and it intersects Wyoming 318 at Milepost 500.00. Wyoming 270 leaves Hartvillel at Milepost 500.21, then meets an equation at 522.29BK=523.24AH. It intersects U.S. 18-20 at Milepost 535.87, then has another equation at 535.87BK=99.77AH because Wyoming 270 changes its WyoDOT inventory route number. At Milepost 100.00 it enters Manville at its junction with former Wyoming 274 (Old U.S. 18-20) and leaves Manville at Milepost 100.51. At Milepost 118.09, it meets Wyoming 271 (MP 0.00), and at Milepost 120.86, Wyoming 270 meets Wyoming 272 (MP 0.00). The route ends at Milepost 133.34 at its junction with U.S. 18-85 (P-25 and MP 170.95).		 Niobara 63.97 –
Routing: Wyoming 271 travels fromFrom Wyoming 270 at Lance Creek west to West Lance Creek and airport.
Mileposts: The zero milepost is at Wyoming 270 (MP 118.09), and the route ends at Milepost 3.19. Wyoming 270, 271, 272, and 273 are clustered in Niobrara County, the least populated county in the state.		 Niobrara 3.19 Airport Spur/Manning Road
Routing: Wyoming 272 travels from Wyoming 270 near Lance Creek north to the Lance Creek Fossil Area; the highway transitions directly onto Niobrara County Road 14 as the road continues north into the Fossil Area. Niobrara 3.32 North Lance Creek Road
Routing: Wyoming 273 is a north-south state highway that spurs from U.S. 18-20 (P-40, MP 39.54) north to a local country club and golf course just west of downtown Lusk. Niobrara 0.33 Country Club Road
History: Wyoming 274 was the designation for the old alignment of U.S. 18-20 through Manville in Niobrara County after a bypass route was built to avoid downtown Manville. Around 1984, old Bypass U.S. 18-20 around Manville became the mainline U.S. 18-20, while old mainline U.S. 18-20 became Wyoming 274. Wyoming 274 was the new designation of the original U.S. 18-20 through this area, until WyoDOT relinquished control of Wyoming 274 in the early 1990s. With that action, Wyoming 274 was decommissioned. Niobrara Approx 1.5 miles Country Club Road
History: Wyoming 287 had three historical definitions, none of which are known as Wyoming 287 today. However, one routing is now part of U.S. 287. In 1926, Wyoming 287 was commissioned along what is now U.S. 189 between U.S. 30N at Kemmerer and U.S. 187 at Daniel Junction. During this time, Wyoming 287 was extended south to U.S. 30S near Piedmont. In 1936, the year of the Great Recommissioning of U.S. routes, Wyoming 287 was recommissioned as U.S. 89. U.S. 287 appeared in 1936, so the Wyoming 287 designation was moved to correspond with that routing. In 1936, U.S. 287 was routed to go through Lander, Riverton, and Diversion Dam Junction on its way to Dubois. The more direct route, from Lander to Diversion Dam Junction, was called Wyoming 287 beginning in 1936. For a point of reference, Diversion Dam Junction is the modern day junction of U.S. 26 and U.S. 287 southeast of Dubois. This routing lasted until 1940, when Wyoming 287 and U.S. 287 were switched: the U.S. route would take the more direct route from Lander to Diversion Dam Junction, while Wyoming 320 took over the Lander to Riverton section of old U.S. 287. Wyoming 287 was the remainder of the route from Riverton to Diversion Dam Junction. In 1950, Wyoming 287 was eliminated with the extension of U.S. 26. Wyoming 320 followed suit in 1954 when Wyoming 789 was commissioned. Fremont N/A U.S. 287
Routing: Wyoming 290 travels from Wyoming 120 at Meeteetse southwest toward Pitchfork via Pappapau Butte and Sunshine Reservoir.
Mileposts: Wyoming 290 begins at its junction with Wyoming 120 (P-33, MP 51.63) at Milepost 0.00, and it leaves Meeteetse at Milepost 0.46. There is one milepost equation at 9.01BK=9.17AH, and the route ends at Milepost 11.39.		 Park 11.23 Park Avenue; Pitchfork Road
Routing: Wyoming 291 travels from U.S. 14-16-20 and Wyoming 120 at Cody southwest to the south shore of the Buffalo Bill Reservoir; the road continues southwest as Park County Road 6 (South Fork Road) to Valley and the Abrasoka Wilderness via Ishawood along the Shoshone River. Park 9.00 Clarks Fork Canyon Road
History: Wyoming 292 was a state route that used to travel from Wyoming 120 near the Wyoming 120-294 junction southwest to Clark and the Clarks Fork River. This route is now called Clarks Fork Canyon Road. Research shows this highway on a 1966 and 1979 official state maps, but it was no longer a state highway by the 1990s. A 1992 DeLorme map shows this county road as “Old Wyoming 292/297.” Park Approx 12 miles Park County Road 1AB; Canyon Road
History: Wyoming 293 was an east-west state route that used to travel from Wyoming 120 just north of Cody east that used to serve oil fields and state lands and the Park County airport. This short (less than two miles long) route was turned back to county maintenance in the early 1990s. Park Approx 2 miles Park County Road 1AB
Routing: Wyoming 294 travels from Wyoming 120 near Clark south to Alternate U.S. 14 near Ralston.
Mileposts: Mileposts increase from south to north. Milepost 0.00 is Alternate U.S. 14 (P-32, MP 15.01), and Milepost 18.82 is Wyoming 120 (P-33, MP 130.10).		 Park 18.82 Badger Basin Road
Routing: Wyoming 295 travels from Wyoming 32 near Bighorn-Park County Line west to Willwood, then turns north to meet Alternate U.S. 14 in Powell and continue north to its end in Elk Basin (south of the Wyoming-Montana State Line). Wyoming 295 also serves the Powell Municipal Airport.
Mileposts: Mileposts increase from southeast to northwest. Milepost 0.00 is Wyoming 32 (MP 112.72), and Milepost 0.43 is the Park-Bighorn County Line. There is a milepost equation at 7.72BK=7.66AH, and Wyoming 295 enters Powell at Milepost 12.17. At Milepost 12.57, Wyoming 295 meets Alternate U.S. 14 (P-32, MP 24.08) and begins a concurrent stretch with U.S. 14A. Then at Milepost 12.64, Wyoming 295 splits off from Alternate U.S. 14 (P-32, MP 24.00) and leaves the city at Milepost 13.82. There is another milepost equation at 20.68BK=20.69AH, and the highway ends at a point north of here.		 Park, Bighorn 29.40 Road 9 (north-south); Lane 13 (east-west)
Routing: Wyoming 296 travels from U.S. 212/Beartooth Highway at a point fourteen miles southeast of Cooke City, Montana, southeast to Wyoming 120 seventeen miles north of Cody via Dead Indian Pass. Wyoming 296 is widely considered to be one of the most scenic state highways in Wyoming.
Mileposts: Mileposts increase from northwest to southeast. Milepost 0.00 is U.S. 212 (P-38, MP 9.40), and Milepost 46.20 is the southern terminus at Wyoming 120 (P-33, MP 116.91). There is one milepost equation at 32.97BK=33.20AH.
History: The Chief Joseph Highway was widened in the 1990s and expanded in a project similar to the project to widen Wyoming 70/Battle Mountain Road. Each of these two state highways was pictured on the cover of the official state highway map, one in 1995 and the other in 1996.		 Park 45.97 Chief Joseph Highway
History: Wyoming 297 is a decommissioned spur route that used to run from former Wyoming 292 into Clark; both Wyoming 292 and 297 were removed from the state highway system at the same time (around 1985). Wyoming 297 was less than one mile long when it was part of the state highway system. Park Approx 1 mile Park County Road 1AB

Page Updated August 20, 2016.