Wyoming Highway 77

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Wyoming Highway 77
Old Shirley Basin Road
WYO 77 highlighted in red
Route information
Maintained by WYDOT
Length	22.18 mi (35.70 km)
Existed	Mid 1970s–present
Restrictions	Closed winters[1][2]
Major junctions
South end	WYO 487 near Medicine Bow
North end	WYO 487 near Casper
Location
Country	United States
State	Wyoming
Counties	Carbon
Highway system
Wyoming State Highway System Interstate US State
← WYO 76 → WYO 78
← WYO 452 → WYO 514

Wyoming Highway 77 (WYO 77) is a 22.18-mile (35.70 km) long Wyoming state highway in northeastern Carbon County. The highway begins at WYO 487 and proceeds north, parallel to the highway, to a northern terminus at WYO 487.