Alpine Loop Backcountry Byway
Three mining towns, two mountain passes, one loud payoff.
The Alpine Loop Backcountry Byway throws you into a 65-mile conversation between three of Colorado’s most stubborn mining towns—Silverton, Lake City, and Ouray—connected by two passes that scrape the belly of the sky at over 12,000 feet. This isn’t some gentle scenic drive; it’s a high-clearance 4×4 requirement written in loose rock and thin air, where Engineer Pass at 12,800 feet and Cinnamon Pass will remind your rig exactly what Colorado considers “difficult terrain.”
The route demands respect and preparation. Engineer Pass earns its name with technical rock sections that’ll test your wheel placement and clearance, while Cinnamon Pass serves up its own brand of loose, sketchy shelf road that drops off into places you don’t want to think about. Water crossings punctuate the journey, most manageable but worth scouting, and dispersed camping opportunities exist for those planning the full 1-2 day experience. July through early October represents your weather window—snow lingers long up here and returns early, turning challenging into impossible overnight. Cell service exists in theory but don’t count on it; this is satellite communicator country.
You’ll roll through remnants of Colorado’s mining boom scattered across alpine basins that look like someone cracked open the earth and forgot to sweep up the pieces. The byway connects these three towns through terrain that killed plenty of men who came here chasing silver and gold, and the landscape hasn’t gotten any friendlier. Expect to burn a full day minimum, though most smart drivers plan two to properly explore the ghost towns and side spurs without rushing the technical sections.
What you get for your trouble is Colorado at its most honest—no gentle tourism board version, but the raw, unforgiving high country that built the state’s reputation. Your rig will earn every mile, your lungs will work overtime, and you’ll understand why they call it the Alpine Loop rather than the Alpine Cruise. This is backcountry byway driving for people who want their scenery served with a side of consequence.
Trail Specs
| Difficulty | Difficult |
|---|---|
| Trail Type | Scenic Byway |
| Surface | Dirt, Rock |
| Features | High Altitude, Historic, Scenic |
| Length (miles) | 65 mi / 104.6 km |
| Duration | 1-2 days |
| Max elevation (ft) | 12800 ft |
| Best season | July-early October |
| Minimum vehicle | High-clearance 4x4 for Engineer and Cinnamon Passes |
| Nearest town | Silverton, CO |
| Land manager | BLM / USFS |
| Permit required | No |
| Cell service | Spotty |
| Water crossings | Yes |
| Dispersed camping | Yes |
| Start coordinates | |
| End coordinates | |
| Copy both for Google Maps directionsClick to copy the directions URL · or open it directly in a new tab | |
| Find on Google | Search on Google → |
Location
Trail Conditions
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Frequently asked questions
Can a stock Jeep Wrangler or 4Runner handle the Alpine Loop, or do I need lockers and a lift?
A stock high-clearance 4x4 with a skid plate and AT tires can complete the loop, but Engineer Pass has loose, off-camber shelf road sections that will punish low-profile tires and nervous drivers. Lockers help on Engineer's rocky descent but aren't mandatory. Lift is not required — ground clearance matters more than travel.
When does the Alpine Loop actually open and close each year?
Typically opens mid-to-late June depending on snowpack and closes by late October after first hard snows — but Engineer and Cinnamon Passes sit above 12,000 feet and can get hit with snow any month of the year. July through early October is the reliable window. Check with the Silverton Ranger District before heading out in shoulder seasons.
Do I need a permit or pay any fees to drive the Alpine Loop?
No permit required and no fee to drive the byway itself. It's BLM and USFS managed public land. If you camp in the Lake City area near Gunnison National Forest, some designated sites charge a small fee — dispersed camping along the route is free.
What's the hardest section of the loop and what am I actually dealing with?
Engineer Pass is the crux — specifically the descent toward Mineral Creek on the Silverton side, which is loose rock, steep grade, and narrow shelf road with significant exposure. One wrong line and you're swapping paint with a cliff. Take it slow, don't let passengers out to spot unless it's safe, and know your rig's brake bias before you point downhill.
How far is it between gas stations, and should I carry extra fuel for the full loop?
Silverton, Ouray, and Lake City each have gas, but there's nothing in between — and you're covering 65 miles of slow, high-RPM mountain driving. Fuel economy tanks at altitude on rough terrain. Carry at least 2–5 extra gallons if your tank is under 20 gallons, especially if you're running a V8 or a heavier rig.
Trail track
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