Colorado

Heil Valley Ranch is a picturesque trail system running along the foothills between Boulder, CO and Lyons, CO with 20 miles of trails on almost 5,000 acres of land. Trailheads can be accessed either the town of Lyons or just off the Foothills Highway after turning on Lefthand Canyon Drive halfway between Boulder and Lyons.

When Open? Area Acres Operated By
Year-round: sunrise to sunset 5,198 acres Boulder County Parks and Open Space
Dogs Allowed? Miles of Trail Max/Min Elev (ft)
No Dogs Allowed 20 5,340ft - 6,900ft

Heil Valley Ranch Trail and Map Finder

Area Hiking Trails:
1 - Access Trail South
2 - Grindstone Quarry Trail
3 - Grindstone Spur Trail
4 - Lichen Loop Trail
5 - Overland Loop Access Trail
Area Hiking Trails:
1 - Access Trail South
2 - Grindstone Quarry Trail
3 - Grindstone Spur Trail
4 - Lichen Loop Trail
5 - Overland Loop Access Trail
6 - Overland Loop Trail
7 - Picture Rock Trail
8 - Ponderosa Loop Trail
9 - Schoolhouse Access Trail
10 - Schoolhouse Loop Trail
11 - Schoolhouse Overland Loop Connector Trail
12 - Wapiti Lichen Cutover Trail
13 - Wapiti Trail
14 - Wild Turkey Trail
Area Trailheads:
1 - Corral Trailhead
2 - Heil Valley Main Trailhead
3 - Picture Rock Trailhead
Area Campgrounds: