White River National Forest · Colorado

Old Dillon Reservoir

1.2 mi of trail, end to end · native material surface · trail No. 87 · trail class 3 · typical grade trail_grade · tread 18-24 inches wide · hiking, horse, bike

Trailhead Old Dillon Reservoir TH #87 Drive there

Old Dillon Reservoir TH #87 the Forest Service's write-up

This is a short, easy trail that has spectacular views of the mountains of the Tenmile Range and the Continental Divide. The Old Dillon Reservoir was built in the 1930’s to supply water to the original town of Dillon, which is now covered by the new Dillon Reservoir. Water is supplied to the old reservoir via a diversion ditch from Salt Lick Creek, north of I-70. The Old Dillon Reservoir offers great fishing during the summer.

This hike on fs.usda.gov

All 729 trails in White River National ForestFind a trailForest on fs.usda.gov

About this trail's facts

The lines are the US Forest Service's National Forest System trails layer (public domain), read 2026-10-16 and simplified for the map; the length is the line's, end to end, and the class, surface, grade and tread width are the forest's own entries where it publishes them - a forest that publishes the centreline alone has none. The trailheads and the points along the way are the Service's recreation points, and the write-ups its own recarea text, unedited. Heights come from USGS 3DEP through Terrain Tiles on AWS (Mapzen/Tilezen), read along each line and rounded; a short trail on steep ground can be off by a few tens of feet. Closures change: check the forest's own site before you go.