Colorado has more public land, more elevation change, and more legitimate off-road terrain than almost anywhere else in the country. The trail network runs from high alpine passes that top out above 13,000 feet to remote canyon systems in the southwest that feel genuinely untouched. For overlanders, it's one of the best states in the country to explore — and the seven trails below represent some of the best driving it has to offer.

1. Imogene Pass — Ouray to Telluride

Imogene Pass sits at 13,114 feet and connects Ouray to Telluride through some of the most dramatic mountain scenery in Colorado. The trail climbs through alpine tundra above the treeline, past the ruins of the historic Camp Bird Mine, and up to a summit with views that stretch across multiple mountain ranges. The descent into Telluride is steep and loose in sections, and the trail demands a capable vehicle with solid ground clearance and confident driving at altitude. Seasonal closure runs through late spring — typically open from late June through early October depending on snowpack.

2. Shelf Road — Cañon City

Shelf Road is a narrow single-lane track carved into the side of a canyon wall between Cañon City and Cripple Creek. The exposure is serious on the canyon side and the passing spots are limited, which means you need to know what you're doing before you commit to it. The geology along the route is striking with its red rock formations and fossil beds that stretch along the canyon floor far below. It runs about 12 miles and is accessible to stock high-clearance vehicles in dry conditions though the loose surface and narrow width reward drivers who take it slow.

3. Alpine Loop — Lake City

The Alpine Loop is one of the most well-known overland routes in Colorado and earns its reputation. The full loop connects Lake City to Ouray and Silverton via Engineer Pass and Cinnamon Pass both topping out above 12,000 feet. The terrain varies considerably across the route with rocky shelf roads, narrow mountain passes, open meadows, and river crossings all part of the experience. The trail is best run as a multi-day trip with camping along the route giving you time to take side trails and move at a pace that lets the landscape sink in.

4. Black Bear Pass — Telluride

Black Bear Pass has a well-earned reputation as one of the most technically demanding trails in Colorado. The descent from the pass into Telluride involves a series of steep switchbacks cut into loose rock with significant exposure on the downhill side. The trail is one-way from the pass into town meaning you commit to the descent once you've crossed the summit. It tops out at 12,840 feet and the views from the upper sections are exceptional. This one is for experienced drivers in capable vehicles. It's not a trail where you find out mid-descent that you're in over your head.

5. Yankee Boy Basin — Ouray

Yankee Boy Basin sits just outside Ouray and delivers high alpine scenery without the technical commitment of the harder trails in the region. The road climbs through aspen groves and open meadows before reaching the upper basin where wildflower season in July and August produces some of the most impressive color in the state. The lower sections are accessible to most high-clearance vehicles and the upper sections add enough challenge to make it engaging for more capable rigs. It's a good entry point for overlanders newer to Colorado's high country terrain.

6. Medano Pass Primitive Road — Great Sand Dunes

Medano Pass Primitive Road runs along the eastern edge of Great Sand Dunes National Park and connects the San Luis Valley to the Wet Mountain Valley through the Sangre de Cristo Mountains. The route includes multiple creek crossings of Medano Creek which requires airing down and reading the water before each crossing. Sand driving at the base of the dunes adds a different kind of challenge to a route that's already varied and interesting. The landscape shifts dramatically from open sand to dense forest to high mountain pass across a relatively short distance making it one of the more diverse trail experiences in the state. If you need to learn how to drive in sand, we have a blog on it here >>>.

7. Ophir Pass — Silverton to Telluride

Ophir Pass connects Silverton to the Ophir area west of Telluride and crosses at 11,789 feet through a narrow rocky shelf road with loose surface conditions and limited room to maneuver. The trail is shorter than some of the other routes on this list but covers serious ground quickly with steep grades, loose rock, and narrow shelf sections that keep your attention. The views from the upper sections look back across the San Juan Mountains and the descent into the Ophir Valley is one of the better payoffs on any trail in the region. High clearance and four-wheel drive are necessary and a capable suspension helps considerably on the loose sections.

Colorado rewards overlanders who take the time to explore it properly. The trails above range from accessible high-clearance routes to serious technical terrain and most of them sit within range of each other in the southwest corner of the state. A week in the San Juans alone covers four or five of the routes on this list with time left over to find the ones that didn't make it.