Mountain Biking · Gunnison, CO
FS 839 Alpine Tunnel 4x4 Road
Before you go
Live · nearest station Gunnison, 0 miGood window today. Daylight to 8:09 pm.
Mostly Cloudy
Feels like 88°
Storm chance
1% afternoon
Wind
10 mph W
UV index
5.1 moderate
Sun window
6:17 am to 8:09 pm
Distance
10.5mi round trip
Elevation gain
844ft
High point
8,547ft
Season
Apr - Octpeak now
About
FS 839 Alpine Tunnel 4x4 Road is a 10.5-mile unpaved route in Gunnison National Forest, suitable for mountain biking with an easy difficulty rating. The trail begins near Pitkin and climbs gradually to a historic elevation of 11,596 feet. Riders travel on a dirt road rather than singletrack, making it accessible for various bike types. The route connects to the Continental Divide Trail and the Alpine Tunnel connector. Key features include restored water tanks, historical markers, and an old train depot at the summit that serves as a shelter or lunch spot. Parking is available immediately upon turning onto the road from Pitkin. The trail is open seasonally, typically from April through October, though usage by ATVs and Jeeps can increase traffic during holiday weekends. Recent reconstruction of the Palisade Wall has restored full access to this historic corridor.
Trail profile
Gain
844 ft
Avg grade
2%
Steepest
4%
High point
8,547 ft
Good to know
Parking at the trailhead
Dogs allowed on leash
Waypoints
Latest trail reportgood
Trail is in good condition. Traction is good with minimal obstacles.
Reported Mar 3, 2025Verified
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