Coal Bank Pass, Road mountain pass in San Juan County, US
Coal Bank Pass reaches an elevation of 3,243 meters and connects the northern region to the southern part of San Juan Mountains in Colorado.
The mountain pass became part of US Highway 550 in the 1920s, establishing a vital transportation route through the San Juan Mountains of Colorado.
The pass forms part of the San Juan Skyway National Scenic Byway, where travelers experience Colorado mountain driving throughout all seasons.
During winter months, vehicles must carry chains or snow tires as the steep southern descent reaches gradients of 6.5 percent along the route.
The pass includes a dedicated runaway truck ramp on its southern slope, ensuring safety measures for vehicles that might experience brake failure.
Location: San Juan County
Elevation above the sea: 3,243 m
GPS coordinates: 37.70060,-107.77700
Latest update: March 7, 2025 17:04
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