White River National Forest · Colorado

Blair Lake

6.1 mi of trail, end to end · native material surface · trail No. 2048 · trail class 2 · typical grade trail_grade · tread 18-24 inches wide · hiking, horse, bike

Trailhead Crater Trailhead Drive there

Blair Lake #2048 the Forest Service's write-up

No fee

The Blair Lake Trail leads visitors into the southern edge of the Flat Tops Wilderness . The trail runs through spruce forest and open meadows, and passes by several scenic mountain lakes. The northern end of the trail also provides majestic views of Crater Lake, Blair Mountain and the surrounding Wilderness area. This portion of the Forest is very remote and rugged, creating an outstanding opportunity for a peaceful and rewarding outdoor experience.

The Blair Lake Trail is 6.2 miles long. It can be accessed from the north via the Crater Trailhead (off Forest Road 647) and from the south via the Patterson Creek Trailhead (off Forest Road 601). Crater Lake is 1.4 miles from the Crater Trailhead, though reaching the lake requires an elevation loss of almost 1,000 feet. On the south end of the trail, Jet Lake is 2.2 miles from the Patterson Creek Trailhead, with minimal elevation change.

This trail is open to foot and horse travel.

The southern end of this trail is an active sheep grazing allotment during the summer. Please do not approach or harass the herd. If approached by a sheep guardian dog: remain calm and quiet, slowly leave the area, and firmly tell the dog “No” or “Go Back.”

Restrictions Motorized and mechanized uses are not permitted in Wilderness areas.

This hike on fs.usda.gov

Crater Trailhead the Forest Service's write-up

No fee

Crater Trailhead serves as the northern access point for the Blair Lake Trail #2048 , which enters the Flat Tops Wilderness . Blair Lake Trail runs 6.2 miles south from the Crater Trailhead, passing several scenic lakes and ending at the Patterson Creek Trailhead . The northernmost lake (Crater Lake), is locating approximately 1.4 miles from the Crater Trailhead. The trail is open to hiking and horseback riding; motorized and mechanized uses are not allowed in Wilderness areas.

Restrictions Motorized and mechanized uses are not permitted in Wilderness areas.  

This trailhead on fs.usda.gov

Patterson Creek Trailhead the Forest Service's write-up

No fee

Patterson Creek Trailhead serves as the southern access point for the Blair Lake Trail #2048 . The trailhead is located off Forest Road 601 at the boundary of the Flat Tops Wilderness . Blair Lake Trail runs 6.2 miles north, passing several scenic lakes and ending at the Crater Trailhead. The trail is open to hiking and horseback riding.

Vehicles can be parked in the grass at the end of the road near the trailhead kiosk, so long as they are outside the Wilderness boundary. The trailhead is accessible from the east via Forest Road 640, from the south via Forest Road 601, and from the north via Blair Mountain Road (a continuation of Forest Road 601).

This area is an active sheep grazing allotment during the summer. Please do not approach or harass the herd. If approached by a sheep guardian dog: remain calm and quiet, slowly leave the area, and firmly tell the dog “No” or “Go Back.”

Restrictions Motorized and mechanized uses are not permitted in Wilderness areas. 

This trailhead 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.