| Casper Mountain Road S. Wolcott Street | ||||
WYO 251 highlighted in red | ||||
| Route information | ||||
| Maintained byWYDOT, City ofCasper | ||||
| Length | 8.99 mi[1] (14.47 km) | |||
| Major junctions | ||||
| South end | ||||
| North end | ||||
| Location | ||||
| Country | United States | |||
| State | Wyoming | |||
| Counties | Natrona | |||
| Highway system | ||||
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Wyoming Highway 251 (WYO 251) is an 8.99-mile-long (14.47 km) north-southWyomingstate road located inNatrona County.
Wyoming Highway 251 begins its southern end atNatrona CR 505 in thecensus-designated place (CDP) ofCasper Mountain, south of the City ofCasper.The southern terminus of WYO 251 lies on the Casper Mountain summit at an elevation of 8,485 feet and provides access to theHogadon Ski Area.[2] Natrona CR 505 continues southwest of the Casper Mountain area and meets County Route 401, which links toWyoming Highway 487.[3] Highway 251 proceeds northward as it zig-zags down offCasper Mountain. At the base, the southern terminus ofWyoming Highway 252 (Garden Creek Road) is intersected at just under 4 miles. Past WYO 252, Highway 251 now on a straighter course, enters the Casper city limits and reachesWyoming Highway 258 also known as Wyoming Boulevard at 5.7 miles.[1][3] Highway 251 continues northward and changes names to South Wolcott Street. WYO 251 gently curves around the west side of the Casper Golf Club and the east side ofCasper College before entering downtown Casper. The northern terminus of Highway 251 lies at the business routes ofI-25/US 20/US 26/US 87 (E. 1st Street) in Casper.
The last 2.01 miles (3.2 km) of Highway 251 are maintained by the City of Casper.[2]

The entire route is inNatrona County.[4]
| Location[4] | mi | km | Destinations | Notes | |
|---|---|---|---|---|---|
| Casper Mountain | 0.000 | 0.000 | Southern terminus; Casper Mountain Road continues as CR 505 | ||
| 3.95 | 6.36 | Counterclockwise terminus of WYO 252 | |||
| Casper | 5.86 | 9.43 | |||
| 8.99 | 14.47 | 1st Street (I-25 BL /US 20 Bus. /US 26 Bus. /US 87 Bus.) | Northern terminus | ||
| Durbin Street | One-way street, outbound access only; continuation beyond northern terminus | ||||
| Wolcott Street | One-way street, inbound access only | ||||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
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