2.7
(23)
79
riders
04:18
28.2km
470m
Mountain biking
Prepare for a difficult mountain biking adventure on the Big Loop, a route that winds through the diverse terrain of the Hartman Rocks Recreation Area. You will cover 17.5 miles (28.2 km) and climb 1549 feet (472 metres), an effort that typically takes around 4 hours and 17 minutes. As…
Last updated: April 23, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Hartman Rocks
BLM - Gunnison Field Office
Waypoints
Start point
Get Directions
27.9 km
Highlight • MTB Park
Tip by
28.2 km
End point
Way Types & Surfaces
Way Types
22.6 km
5.55 km
121 m
< 100 m
Surfaces
17.7 km
6.14 km
3.25 km
1.20 km
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Elevation
Highest point (2,550 m)
Lowest point (2,350 m)
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Weather
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Today
Thursday 25 June
22°C
9°C
63 %
Additional weather tips
Max wind speed: 22.0 km/h
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This route was planned by komoot.
This challenging mountain bike route typically takes around 4 hours and 18 minutes to complete. The total distance is approximately 28.2 kilometers (17.5 miles).
No, the Big Loop is rated as a difficult mountain biking trail. It features technical sections and significant elevation changes, making it best suited for experienced riders.
The Big Loop trail is located within the Hartman Rocks Recreation Area. You can typically find parking at various trailheads throughout the recreation area, which provide access to the extensive trail network. Check the Hartman Rocks Recreation Area website for specific trailhead parking locations.
Generally, there are no entrance fees or permits required for day use at Hartman Rocks Recreation Area. However, it's always a good idea to check the official Bureau of Land Management (BLM) website for any current regulations or special event requirements before your visit.
Yes, dogs are generally allowed on trails within Hartman Rocks Recreation Area, including the Big Loop. Please ensure your dog is kept on a leash at all times and that you clean up after them to preserve the natural environment for everyone.
The best time to mountain bike the Big Loop is typically during the spring and fall months when temperatures are milder. Summer can be very hot, and winter conditions may bring snow and ice, making the trail impassable or significantly more challenging.
The Big Loop offers a diverse and challenging terrain typical of Hartman Rocks. Expect a mix of technical singletrack, rocky sections, and potentially some exposed sandstone. There are significant climbs and descents throughout the route.
The Big Loop showcases the rugged beauty of Hartman Rocks. You'll experience varied landscapes and can enjoy views of the surrounding high desert. One notable section you'll encounter is Collarbone Alley, known for its technical features.
Yes, the Big Loop is part of the extensive Hartman Rocks trail system and intersects with many other paths. Along this route, you'll pass through sections of trails such as Outback, Sawtooth, Bambi's, Josies, Rocky Ridge, Dave Moe's, Sky Line, Dirty Sock, and Enchanted Forest, among others.
Given the trail's difficulty and length, it's essential to be well-prepared. Bring plenty of water, snacks, a repair kit for your bike, a first-aid kit, sun protection, and appropriate mountain biking gear. A GPS device or a downloaded map is also highly recommended as the trail network is extensive.
The Big Loop is known for its technical sections and sustained climbs. Riders often find that starting early in the day helps avoid the heat, especially in summer. Be prepared for rocky terrain and ensure your bike is in excellent condition. While there are many intersecting trails, staying on the marked Big Loop route requires attention to navigation.
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