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Mount Sanitas Loop Trail – Boulder, Colorado

View of Boulder from the peak of the Mount Sanitas Trail

View of Boulder from the peak of the Mount Sanitas Trail

Location: Off Mapleton Avenue, just west of Boulder

Trail Length: About 3.0 miles, loop trail that includes the Mount Sanitas, East Ridge and Sanitas Valley trails

Elevation Gain: Almost 1,300 feet

Notable Features: A strenuous trail that is very popular with the locals. Expect to share the trail with a lot of people and dogs, especially on the weekends. The peak offers great views of Boulder as well as the mountains to the west, and the descent down the East Ridge Trail is very steep and sometimes hard to follow (just follow the crowd). Once you reach the bottom, the Sanitas Valley Trail is a wide gravel path back to the trailhead.

  • Mount Sanitas Trail
  • View of Boulder from the Mount Sanitas Trail
  • Mount Sanitas Trail
  • View from the Mount Sanitas Trail
  • Mount Sanitas Trail
  • View of Boulder from the peak of the Mount Sanitas Trail
  • View of Boulder from the peak of the Mount Sanitas Trail
  • View of Boulder from the peak of the Mount Sanitas Trail
  • Switchbacks heading down the East Ridge Trail from the peak of Mount Sanitas
  • Heading down the East Ridge Trail from the peak of Mount Sanitas
  • View from the Sanitas Valley Trail in Boulder
  • View from the Sanitas Valley Trail in Boulder

Elevation profile:

Mount Sanitas Loop Boulder