Summit County, Colorado
White River National Forest
Dillon Ranger District
View this on the Colorado Trailheads Map
Forest Service Road: 175
Trail Type: Out and Back
Nearby Towns: Keystone
Trail Length: 14.91 miles
Elevation: 9,273 to 12,066 feet
Starting on a residential street in Keystone, this trail follows Keystone Gulch at the base of Keystone Mountain. At the end, it cuts up Keystone Mountain to end at Erickson Mine and some amazing scenery.
Start at Keystone Gulch Road where pavement turns to an easy dirt trail. There is a gate and kiosk at the trailhead. The first part of the trail is wide and easy as you go by houses and ski lifts that take skiers to the Keystone Ski Area.
At just under 3.5 miles from the trailhead there is a spur to the right of the trail near some beaver ponds. It crosses a shallow stream and heads up the ridge on the other side of the gulch. It is a series of switchbacks through trees that suddenly ends with barely enough room to turn around. There isn't much scenery other than pine trees, so this spur does not have much to offer other than some time in peace and quiet.
Continue following the main trail and soon it turns up to the left and starts heading up the mountain. You climb above timberline and the area opens up to fabulous scenery. You can see the entire valley and mountains many miles away.
A series of switchbacks carry you up to the Erickson Mine, where there are still a few buildings left standing. There is room to park and turn around in a few places.
Return down the switchbacks to go out the way you came in.
Information last updated on August 24th, 2008.