Snowy Range Pass to Brooklyn Lake
Alpine granite gauntlet above Wyoming's treeline
This high-country route links Snowy Range Pass with Brooklyn Lake through some of Wyoming’s most unforgiving alpine terrain, following cairned paths across granite slabs and talus fields where July snowstorms can trap the unprepared. The track climbs above Mirror Lake past the Libby Flats observation deck before threading between Medicine Bow Peak and Browns Peak on narrow shelves where one wrong move means a thousand-foot tumble. Ancient Precambrian granite formations create a moonscape of house-sized boulders and hidden crevasses that challenge even experienced mountain drivers.
Difficult high-altitude route demanding rock-crawling skills, skid plates, and aggressive tires. Weather changes instantly above treeline—carry chains, recovery gear, and emergency supplies even in August. Best attempted July through early September when most snow clears, but be prepared to turn back if storms roll in. No permits required, but dispersed camping restricted near lakes. Cell service spotty at best. This isn’t a Sunday drive—it’s serious alpine exploration that rewards careful drivers with views across three states and the humbling realization of just how small we are in these mountains.
Trail Specs
| Difficulty | Difficult |
|---|---|
| Trail Type | Technical 4x4 |
| Surface | Rock |
| Features | High Altitude, Remote, Scenic |
| Length (miles) | 19 mi / 30.6 km |
| Duration | 1-2 days |
| Max elevation (ft) | 10800 ft |
| Best season | July-September |
| Minimum vehicle | Technical 4WD with skid plates |
| Nearest town | Centennial, Wyoming |
| Land manager | Medicine Bow-Routt National Forest |
| Permit required | No |
| Cell service | Spotty |
| Water crossings | No |
| 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 Tacoma or 4Runner handle this trail, or do I need a built rig?
A stock Tacoma or 4Runner will struggle on the granite boulder sections — you need solid skid plates, a locking differential, and ideally a suspension lift. This trail earns its 'Difficult' rating through sustained rocky terrain, not just one hard move, so a minimally built rig is a real liability up here.
When does the trail actually open after winter, and when does snow start closing it again?
July through September is your window — snowpack at 10,800 feet can linger well into June, and early-season storms can hit in late September. Check current conditions with the Medicine Bow-Routt National Forest before you leave; snow closes this trail fast and without much warning.
Do I need a permit to run this trail or camp along it?
No permit is required to drive the trail, and dispersed camping is allowed within Medicine Bow-Routt National Forest under standard Leave No Trace rules — no fee, no reservation. Stay 200 feet from water sources and established roads, and keep camping to 14 days at any one site.
What's the hardest section, and what specifically makes it technical?
The granite boulder fields above treeline are where rigs get sorted out — large, loose, and irregularly shaped rocks require careful line selection and consistent low-range crawling. The exposure at altitude means no shade, wind gusts, and afternoon thunderstorms that can roll in fast; the technical driving and the environment together are what make this trail serious.
How far is the nearest gas from the trailhead, and is cell service reliable enough to call for help if something goes wrong?
Centennial, Wyoming is your closest services, and gas options are limited — fuel up in Laramie (~30 miles east) before you head out. Cell service is spotty to nonexistent on the trail, so carry a satellite communicator; don't count on your phone to bail you out up here.
Trail track
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