Route description

SH 318 runs 60.7 miles (97.7 km), starting north of the Green River

Green River (Utah)

The Green River, located in the western United States, is the chief tributary of the Colorado River. The watershed of the river, known as the Green River Basin, covers parts of Wyoming, Utah, and Colorado. The Green River is long, beginning in the Wind River Mountains of Wyoming and flowing...

 in an isolated area known as Browns Park. It connects at the Utah

Utah

Utah is a state in the Western United States. It was the 45th state to join the Union, on January 4, 1896. Approximately 80% of Utah's 2,763,885 people live along the Wasatch Front, centering on Salt Lake City. This leaves vast expanses of the state nearly uninhabited, making the population the...

 state line with gravel surfaced Brown's Park Road. The highway runs southeast, passing Browns Park National Wildlife Refuge

Browns Park National Wildlife Refuge

Browns Park National Wildlife Refuge is a U.S. National Wildlife Refuge located in northwestern Colorado. It is located in Moffat County in the extreme northwestern corner of the state, in an isolated mountain valley of Browns Park on both sides of the Green River, approximately below Flaming...

 and continuing southeast when the Green River turns south into Dinosaur National Monument

Dinosaur National Monument

Dinosaur National Monument is a National Monument located on the southeast flank of the Uinta Mountains on the border between Colorado and Utah at the confluence of the Green and Yampa Rivers. Although most of the monument area is in Moffat County, Colorado, the Dinosaur Quarry is located in Utah...

. The highway crosses Vermillion Creek

Vermillion Creek

Vermillion Creek is a tributary of the Green River. It flows south from Sweetwater County, Wyoming to a confluence with the Green River just north of the Gates of Lodore in Moffat County, Colorado....

, the Little Snake River

Little Snake River

The Little Snake River is a tributary of the Yampa River, approximately 150 mi long, in southwestern Wyoming and northwestern Colorado in the United States....

 and the Yampa River

Yampa River

The Yampa River is a tributary of the Green River, approximately 250 mi long, in the U.S. state of Colorado. It's located in the Southwestern United States...

 before ending at a junction with .

Major intersections

The entire route is in Moffat County

Moffat County, Colorado

Moffat County is the northwesternmost and the second most extensive of the 64 counties of the State of Colorado of the United States. The county population was 13,184 at U.S. Census 2000. The county seat is Craig.- History :...

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|Utah

Utah

Utah is a state in the Western United States. It was the 45th state to join the Union, on January 4, 1896. Approximately 80% of Utah's 2,763,885 people live along the Wasatch Front, centering on Salt Lake City. This leaves vast expanses of the state nearly uninhabited, making the population the...

 state line
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|Maybell

Maybell, Colorado

Maybell is an unincorporated town and a U.S. Post Office in Moffat County, Colorado, United States. The Maybell Post Office has the ZIP Code 81640.The lowest temperature ever recorded in the state of Colorado was -61°F at Maybell on February 1, 1985....

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