Devil's Causeway

10.2 miles with 1,843 ft of elevation gain near Yampa, Colorado.

Alternate titles:

  • Devils Causeway and Rio Blanco High point

The Devil's Causeway is a narrow ridge running between the drainage of William Fork River and the White River. It begins at Stillwater Reservoir and is about 6 miles to the causeway or 10 miles round trip if you continue on the loop.

Crossing the causeway, you will find yourself scrambling low to the ground over four foot wide places at times, so get ready for an adventure!

USFS website

This is in the flattops wilderness area. Please follow all rules and regulations associated with this area 

  • Suitable Activities: Hiking
  • Seasons: June, July, August, September, October
  • Weather: View weather forecast
  • Difficulty: Hard
  • Length: 10.2 mi
  • Elevation Gain: 1,843 ft
  • 11,800 ft
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  • Devils Causeway and Rio Blanco High point
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