Wyoming Highway 136 (WYO 136) is a 42.70-mile-long (68.72 km) long east–west Wyoming State Road in Fremont County.

Wyoming Highway 136, named Gas Hills Road, begins at Wyoming Highway 135 south of Riverton.

From there, Highway 136 travels east, crosses into the Wind River Indian Reservation and on into the Gas Hills Uranium Mining District.

[2] WYO 136 reaches its eastern end at a T-intersection with Fremont CR 5 (Dry Creek Road).

[3][4] Highway 136 provides access to Castle Gardens Prehistoric Site where hundreds of prehistoric carvings can be viewed on the sandstone rock.