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Routes
Mountain biking trails
United States
Colorado
La Plata County

Blackhawk Co. Trail eastern loop

Hard

3.0

(12)

26

riders

Blackhawk Co. Trail eastern loop

04:14

39.7km

1,260m

Mountain biking

Embark on the Blackhawk Co. Trail eastern loop for a difficult mountain biking adventure spanning 24.7 miles (39.7 km). You will conquer a significant 4126 feet (1258 metres) of elevation gain, with the entire ride estimated to take around 4 hours and 13 minutes. This route immerses you in rugged high-alpine terrain, featuring long, sustained climbs, especially up Hermosa Park Road, leading to spectacular vistas of the San Juan Mountains and the Sneffels range as you traverse lush forests and vibrant aspen groves.

Planning your visit requires careful consideration, as this advanced mountain biking trail is not suitable for beginners. It features black diamond difficulty singletrack with very steep and rocky sections that demand experience. Always check local conditions before you go, particularly given the high elevation, to be aware of any potential snow or road closures. Parking is generally available at various trailheads in the Rico area, providing convenient access to this challenging loop.

This iconic San Juan ride is nestled within the vast San Juan National Forest, offering a true taste of high-country mountain biking. The trail is renowned for its unique blend of demanding physical effort and rewarding natural beauty, making it a standout experience in the region. You will find yourself riding through flower-filled valleys and past towering peaks, showcasing the diverse ecosystems of the Colorado Rockies.

Last updated: April 23, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

San Juan National Forest

Waypoints

A

Start point

Parking

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1

12.6 km

Colorado Trail near Blackhawk Pass

Highlight (Segment) • Trail

This is an exciting 11 mile segment of the Colorado Trail. It is highly rated by bikers and hikers who share the trail to enjoy the beautiful views it offers.

Tip by

2

19.0 km

Blackhawk Pass

Highlight (Segment) • Mountain Pass

This section of the Colorado Trail is called Blackhawk Pass and it leads up to 12,000 feet. When you ride up those switchbacks, you definitely feel the elevation.

Tip by

3

38.4 km

Hermosa Creek North Trailhead is your gateway into the Hermosa Creek Wilderness and the Special Management Area. Take a hike along Hermosa to the south or follow the West Cross Trail that connects with the long-distance Colorado Trail. Whatever you decide for: The landscape is spectacular.

Tip by

B

39.7 km

End point

Parking

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Way Types & Surfaces

Way Types

22.7 km

13.1 km

3.92 km

Surfaces

18.5 km

10.7 km

10.5 km

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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 (3,640 m)

Lowest point (2,680 m)

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Weather

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Today

Saturday 9 May

16°C

-1°C

20 %

Additional weather tips

Max wind speed: 21.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Is the Blackhawk Co. Trail eastern loop suitable for beginners?

No, this trail is rated as difficult and features black diamond singletrack. It involves significant climbing, technical rocky sections, and steep descents, making it best suited for advanced and experienced mountain bikers.

What is the terrain like on this mountain bike loop?

The terrain is rugged and varied, typical of high-alpine environments. You'll encounter long, sustained climbs, narrow singletrack, challenging rocky and root sections, and rewarding steep descents. The route also traverses through lush forests, flower-filled valleys, and beautiful aspen groves, especially on sections like the Stagecoach Trail.

What is the best time of year to mountain bike this trail?

Given its high-alpine elevation (10,200 to 12,000 feet), the best time to ride this loop is typically from late June or early July through September, after the snow has melted and before new snow arrives. Always check current conditions before heading out.

Do I need a permit or pay an entrance fee to ride this trail?

The Blackhawk Co. Trail eastern loop is located within the San Juan National Forest. Generally, there are no specific permits or entrance fees required for day use on trails in national forests. However, always be aware of and adhere to all local regulations and Leave No Trace principles.

Is this trail dog-friendly?

Yes, dogs are generally allowed on trails within the San Juan National Forest. However, they must be kept on a leash at all times to protect wildlife and ensure a pleasant experience for all trail users. Please remember to pack out all pet waste.

Where does the Blackhawk Co. Trail eastern loop start, and is there parking available?

A common starting point for loops incorporating the Blackhawk Pass area is near Rico, Colorado. The route often utilizes trailheads like the Upper Hermosa Creek Trailhead. Parking availability can vary, so it's advisable to research specific trailhead parking options in advance, especially during peak season.

What notable landmarks or viewpoints can I see along the route?

This loop offers spectacular high-alpine views of the San Juan Mountains. Key highlights include the Colorado Trail near Blackhawk Pass and Blackhawk Pass itself, which provide expansive vistas. You'll also ride through beautiful aspen groves and verdant hillsides.

Does this trail intersect with other well-known paths?

Yes, this route is part of the famous Colorado Trail (specifically Segment 26) and incorporates sections of it. The loop also passes through other official trails such as Hermosa Park Road, West Cross Trail, and Hermosa Creek Trail, among others, allowing for various route combinations.

What should I bring for a mountain bike ride on this loop?

Given the trail's difficulty and high-alpine environment, you should bring plenty of water, high-energy snacks, appropriate layers for changing weather, sun protection, a first-aid kit, and essential bike repair tools. A GPS device or map is also highly recommended due to the remote nature of the area.

Is there an optimal way to ride this loop for the best experience?

Many riders find that incorporating the Stagecoach Trail into the loop provides a fantastic experience. After the challenging climbs to Blackhawk Pass, the Stagecoach Trail offers a fast, mostly smooth, non-technical, and flowy downhill through gorgeous aspen groves, providing a rewarding descent.

Are there any amenities like cafes or accommodation near the trail?

The town of Rico, Colorado, is the closest community to the Blackhawk Pass area and offers basic amenities. You can find limited options for cafes, pubs, and accommodation there. For more extensive services, you might need to look towards larger towns in the San Juan Mountains.

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