Coal Bank Pass, elevation , is a

mountain pass A mountain pass is a navigable route through a mountain range or over a ridge. Since many of the world's mountain ranges have presented formidable barriers to travel, passes have played a key role in trade, war, and both Human migration, human a ...

in the San Juan Mountains of western

Colorado Colorado (, other variants) is a state in the Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the western edge of t ...

in the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

. The pass is in the San Juan National Forest.

Route

The pass is traversed by the

Million Dollar Highway U.S. Route 550 (US 550) is a spur of U.S. Highway 50 that runs from Bernalillo, New Mexico to Montrose, Colorado in the western United States. The section from Silverton to Ouray is frequently called the Million Dollar Highway.

, U.S. Highway 550 south of Silverton, which is part of the

San Juan Skyway Scenic Byway The San Juan Skyway Scenic and Historic Byway is a All-American Road, National Forest Scenic Byway, and Colorado Scenic and Historic Byway located in Dolores, La Plata, Montezuma, San Juan, and San Miguel counties, Colorado, ...

. While the north side is fairly gentle, the descent on the south side is very steep (6.5%), and has a runaway truck ramp for trucks that lose control. It is basically downhill the entire way to

Durango Durango (), officially named Estado Libre y Soberano de Durango ( en, Free and Sovereign State of Durango; Tepehuán: ''Korian''; Nahuatl: ''Tepēhuahcān''), is one of the 31 states which make up the 32 Federal Entities of Mexico, situated in ...

References

Mountain passes of Colorado Landforms of San Juan County, Colorado San Juan Mountains (Colorado) San Juan National Forest Transportation in San Juan County, Colorado U.S. Route 50 {{Colorado-geo-stub