Slumgullion to Cebolla Mesa — Lake City Backcountry High Desert Bench
Gunnison country bench. Crowds don't find this one.
The Slumgullion Earthflow is one of the weirder geological facts in Colorado — two million cubic yards of mountain that started sliding around 700 years ago and hasn’t stopped. You launch off the pavement of Highway 149 near the earthflow’s lower lobe, pick up the two-track heading northwest, and within a mile you’re on Cebolla Mesa with the Gunnison River drainage laid out seven hundred feet below you and the La Garita Mountains stacked up to the north. The road is straightforward high-clearance most of the way, with one rocky descent into Cebolla Creek that earns its pucker factor — loose cobble, steep grade, no bailout.
This is a moderate run that flirts with difficult on that creek descent and whenever afternoon thunderstorms — an absolute certainty from July through August — turn the clay flats on top of the mesa into an ice-skating rink. Go in June or September to stack the odds in your favor. Stock 4WD with good clearance handles it dry; a locker is insurance. No permit, no fee. Water at Lake City before departure — the creek crossings are seasonal and not reliable for filtration. Dispersed camping on the mesa is exceptional, remote, and completely free. Cell service is nonexistent once you leave 149. This one rewards the driver who isn’t following a crowd.
Trail Specs
| Difficulty | Moderate |
|---|---|
| Trail Type | Backcountry, High Clearance |
| Surface | Dirt, Gravel, Mixed, Rock |
| Features | Camping, Remote, Scenic, Water Crossings |
| Length (miles) | 27 mi / 43.5 km |
| Duration | 1-2 days |
| Max elevation (ft) | 9400 ft |
| Best season | June-September |
| Minimum vehicle | Stock 4WD high-clearance |
| Nearest town | Lake City, CO |
| Land manager | Gunnison National Forest |
| Permit required | No |
| Cell service | None |
| Water crossings | Yes |
| Dispersed camping | Yes |
| Official sources | fs.usda.gov |
| Start coordinates | |
| End coordinates | |
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Location
Trail Conditions
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Frequently asked questions
Can a stock 4Runner or Wrangler handle this trail without modifications?
Yes — a stock high-clearance 4WD is the minimum and will get through. Lifted rigs have more margin on the rockier sections, but nothing here requires lockers or extreme articulation. Run decent all-terrains and you're fine.
When does Slumgullion to Cebolla Mesa typically open, and is snow a real concern?
June through September is the reliable window. At 9,400 ft max elevation, snow can linger into early June and return by October — sometimes earlier. Check current road conditions with Gunnison National Forest before heading out in shoulder months.
Do I need a permit or are there any fees to drive this trail?
No permit required and no fee to drive the route. It runs through Gunnison National Forest, so standard dispersed camping rules apply — no campfire restrictions beyond any active forest orders, which you should verify before your trip at fs.usda.gov/gmug.
What's the hardest section and what should I actually expect?
The bench road across Cebolla Mesa has loose rock and eroded sections that keep you honest, but nothing that'll stop a competent driver in a capable rig. The bigger challenge is the exposure — narrow shelf road sections with drop-offs into the Gunnison gorge country below. Stay alert and drive it when visibility is good.
How far is the nearest gas from the trailhead, and is there any cell service on trail?
Lake City is your last fuel stop — top off there before you head up Slumgullion Pass. There is zero cell service for the entire 27 miles, so download your maps offline and tell someone your plan before you roll out.
Trail track
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