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Routes
Mountain biking trails
United States
Colorado
Gunnison County

Aberdeen loop

Hard

3.4

(19)

30

riders

Aberdeen loop

04:08

25.6km

530m

Mountain biking

The Aberdeen loop offers a truly immersive mountain biking experience through the high-desert landscape of Hartman Rocks. You'll encounter a mix of technical singletrack, slickrock, and exhilarating flow sections, all set against a backdrop of rolling sagebrush and striking granite rock formations. The route provides incredible 360-degree views, allowing you…

Last updated: June 9, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

BLM - Gunnison Field Office

Hartman Rocks

Waypoints

A

Start point

Parking

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1

6.00 km

Aberdeen loop

Highlight (Segment) • Trail

Aberdeen Loop is a high desert trail in the sage country of Hartman Rocks. This remote trail has a good flow section and is not very technical, making enjoyable for most riders.

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B

25.6 km

End point

Parking

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Way Types & Surfaces

Way Types

18.0 km

7.66 km

< 100 m

Surfaces

17.3 km

8.22 km

< 100 m

< 100 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (2,640 m)

Lowest point (2,410 m)

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Weather

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Today

Sunday 28 June

27°C

7°C

0 %

Additional weather tips

Max wind speed: 27.0 km/h

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Frequently Asked Questions

What is the difficulty level of the Aberdeen loop mountain bike trail?

The Aberdeen loop is considered a challenging mountain biking experience, particularly when starting from the Bambi Trailhead. While sections like Aberdeen Loop West are rated 'Blue' (Intermediate), the overall route features longer climbs and descents, with some parts having a difficulty rating of 6 out of 10 due to technical singletrack, side-hilling, steeper switchbacks, and loose rock.

What kind of terrain can I expect on this trail?

The Aberdeen loop offers a diverse terrain, blending technical singletrack with flow sections. Riders will encounter natural slickrock features, traditional singletrack, and natural surface roads. Expect rolling sagebrush hills, sharp curves, and some loose rock, especially on uphill segments. The East section is known for being fast and flowy through sagebrush, while the West section is generally uphill.

What are the notable landmarks or viewpoints along the route?

Riders are treated to sweeping landscapes, high-desert vistas, and 360-degree views throughout the ride. You'll see rolling hills of sagebrush, unique granite rock formations, and occasional Cottonwood groves. Spectacular views of the Gunnison Basin to the north and the San Juan Mountains to the south are a highlight. The trail also passes by the historic Aberdeen Quarry, which once supplied granite for the Colorado State Capitol building.

Where can I park to access the Aberdeen loop?

While the trail can be accessed from various points within Hartman Rocks, starting from the Bambi Trailhead is a common option for the Aberdeen loop. Specific parking details for this trailhead should be checked on local Gunnison recreation resources or the BLM website for the Hartman Rocks Recreation Area.

Are there any seasonal closures for the Aberdeen loop?

Yes, trails south of Powerline Road, which include the Aberdeen loop, are subject to seasonal closures. These closures typically run from March 15 to May 15 each year to protect the Gunnison Sage-grouse during their nesting season. Always check current conditions before planning your ride.

What is the best time of year to ride the Aberdeen loop?

Considering the seasonal closures, the best times to ride are generally late spring (after May 15), summer, and fall. Spring offers abundant wildflowers, while fall provides cooler temperatures and potentially vibrant foliage. Always check local weather and trail conditions, especially for high-desert environments.

Does the Aberdeen loop intersect with other trails in Hartman Rocks?

Yes, the Aberdeen loop is part of the extensive Hartman Rocks trail system and intersects with several other paths. Along the route, you'll encounter sections of East Aberdeen, West Aberdeen, Outback Road, Outback, Skull Pass, Lower Aberdeen Road, Powerline Road, Aberdeen Connector, Bambi's, Aberdeen Quarry, Skull ByPass, Hartman Rocks Road A59, South End Road, Back In, 9-0, and Enchanted Forest.

Are dogs allowed on the Aberdeen loop?

The Hartman Rocks Recreation Area, where the Aberdeen loop is located, is generally dog-friendly. However, specific rules regarding leashes and waste removal apply. Always ensure your dog is under control and that you pack out all waste to preserve the natural environment and respect other trail users.

Do I need a permit or pay an entrance fee to access the Hartman Rocks Recreation Area or the Aberdeen loop?

As of current information, there are typically no permits or entrance fees required to access the Hartman Rocks Recreation Area or to ride the Aberdeen loop. However, it's always a good practice to check the official Bureau of Land Management (BLM) website (blm.gov) or local Gunnison recreation resources for any updated regulations or fees before your visit.

How does the Aberdeen loop compare to other mountain biking trails in Hartman Rocks?

The Aberdeen loop offers a more remote and less crowded experience compared to trails closer to the main Hartman Rocks trailhead. It's known for encompassing many of the best aspects of the area, including technical singletrack, flow sections, and a strong sense of wilderness, making it a rewarding choice for riders seeking a challenging and scenic adventure away from the busiest areas.

What kind of wildlife might I see on the trail?

The high-desert environment of Hartman Rocks is home to various wildlife. While specific sightings are never guaranteed, you might encounter deer, elk, various bird species, and smaller mammals. The seasonal closures are specifically in place to protect the Gunnison Sage-grouse, indicating their presence in the area.

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