Medicine Bow-Routt National Forest · Colorado, Wyoming

Never Summer

13 mi of trail, end to end · native material surface · trail No. 1141.1 · trail class 2 · typical grade 30-40% · tread 12-18 inches wide · hiking, bike, motorcycle, e-bike, horse · motorized use allowed

Trailhead Illinois River Trailhead Drive there

Illinois River Trailhead the Forest Service's write-up

No site fee; current Colorado ATV/OHV/Snowmobile registration required.

Informal trailhead with limited parking and no facilities but access to many miles of roads and trails for OHV travel as well as high elevation access to CDNST and Never Summer Wilderness. Illinois River TH is located in the Troublesome Area and is managed by the Parks Ranger District.

This trailhead on fs.usda.gov

Jack Creek Trailhead the Forest Service's write-up

No site fee; current Colorado ATV/OHV/Snowmobile registration required.

Located outside of Walden CO, this primitive trailhead provides access to the Jack Creek drainage and the Never Summer Wilderness. The upper portion of FSR #758 is not suitable for passenger cars, 4WD is recommended. The trail is an old jeep road and is not well signed, although one should have no problem hiking through open meadows up to the pass. The trail is fairly steep up to the Continental Divide. Camping areas are available all along this trail. Spectacular views of Jack Creek drainage and the Never Summer Mountains can be seen. The trail enters the Never Summer Wilderness at the Continental Divide and Baker Pass. Please refer to the Wilderness Regulations. The wilderness is closed to motorized and mechanized vehicles.

Restrictions Special restrictions in Never Summer Wilderness.

This trailhead on fs.usda.gov

South Fork Trailhead the Forest Service's write-up

Free

This trail lies within the Never Summer Wilderness in the Troublesome Area. Please refer to the Wilderness Regulations. The wilderness is closed to motorized and mechanized vehicles. The South Fork Trail climbs gradually along the South Fork of the Michigan River through the old-growth spruce-fir forests. It occasionally crosses an open meadow along the creek. Views are limited by the trees. Within ½ mile of Baker Pass, the trail breaks into the open and ascends rapidly. The spectacular scenery of the Never Summer Mountains and the Continental Divide may be seen from Baker Pass. It is managed by the Parks Ranger District.

Restrictions Special restrictions in Never Summer Wilderness.

This trailhead on fs.usda.gov

All 375 trails in Medicine Bow-Routt 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.