ElevationAscent: 813' 248 m
Descent: 0' 0 m
High: 6,712' 2,046 m
Low: 5,898' 1,798 m
GradeAvg Grade: 6% (3°)
Max Grade: 15% (9°)
Popular runs nearby
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Boulder Mountain Marathon
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Bear Peak Out and Back
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“The main trail at Heil climbing up from the trailhead to the Ponderosa loop and beyond.”— Tom Robson
Once you hit the singletrack, it's a steady climb for about 2.5 miles, all the way up to the junction with the Ponderosa Loop. The trail mostly runs through a heavily forested area, so there's plenty of shade.
The area is extremely rocky - the ground is covered with many softball to basketball-sized rocks. But the Boulder Mountainbike Alliance and others have done much work to clean up the trail, make it a little easier, and keep it sustainable.
Run this trail about 2.5 miles to the junction of the Ponderosa Loop. You can connect this to multiple loops at the top of Heil, or to the Picture Rock trail, which leads down to Lyons and Hall Ranch.
History & Background
The 5,200-acre open space making up Heil Ranch trails and the newer Picture Rock trail are part of a large land purchase made by Boulder County Parks and Open Space in 1993 and 1994. The area housed large quarry operations from the 1890's to the 1960's.
Run this trail?
We need help with the following missing trail information:
Need to Know, Dogs Allowed, Flora & Fauna, Runner Notes
Land Manager: Boulder County, CO - Parks and Open Space