Routes

Planner

Features

Updates

App

Login or Signup

Get the App

Login or Signup

Login or Signup

Routes
Mountain biking trails
United States
Colorado
Larimer County

Crosier Mountain Loop

Hard

4.6

(2871)

9,119

riders

Crosier Mountain Loop

02:35

19.1km

930m

Mountain biking

The Crosier Mountain Loop is a difficult 11.9-mile mountain biking trail in Roosevelt National Forest with 3066 feet of elevation gain.

Last updated: February 26, 2026

Tips

Includes very steep uphill segments

You may need to push your bike.

After 159 m for 3.00 km

After 5.20 km for 806 m

Waypoints

A

Start point

Parking

Get Directions

1

678 m

Rainbow Trail

Highlight (Segment) • Trail

The Rainbow Trailhead or Gravel Pit trailhead is about 5.5 miles from Drake and is quite visible from the road due to the large gravel road. The trailhead and trail …

Tip by

2

5.96 km

Crosier Mountain

Highlight • Summit

Crosier Mountain is 9,250 feet tall and especially in comparison to the peaks in the nearby Rocky Mountain National Park, incredibly dry, open, and arid. Crosier Mountain is accessible from …

Tip by

3

6.89 km

Crosier Mountain Trail

Highlight (Segment) • Trail

The Crosier Mountain Garden Gate trailhead, located about two miles west of Drake along Hwy 43, has room for six to eight vehicles, but no restrooms. The Crosier Mountain Trail …

Tip by

B

19.1 km

End point

Parking

Loading

Way Types & Surfaces

Way Types

14.1 km

4.70 km

226 m

< 100 m

Surfaces

18.5 km

379 m

226 m

Sign up to see more specific route details

Sign up for free

Elevation

Elevation

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

Highest point (2,790 m)

Lowest point (1,960 m)

Sign up to see more specific route details

Sign up for free

Weather

Powered by Foreca

Today

Sunday 17 May

11°C

-1°C

86 %

Additional weather tips

Max wind speed: 9.0 km/h

to get more detailed weather forecasts along your route

This route was planned by komoot.

Save

Edit route

Download GPX

Move start point

Print

Share

Embed on a website

Report an Issue

Frequently Asked Questions

How challenging is the Crosier Mountain Loop for mountain biking?

The Crosier Mountain Loop is generally classified as difficult and challenging. Riders should expect steep climbs with switchbacks, rocky paths, and technical sections. Some parts are described as a "wicked-fast bobsled run of rocks and slabs" with water bars and loose granite. Be prepared for significant elevation gain.

Are there any sections of the trail that are particularly difficult or unrideable on a bike?

Yes, due to significant damage from past floods, many sections are badly washed-out and eroded, often requiring extensive "hike-a-biking." The actual summit trail, in particular, is not recommended for bikes due to its steep and loose nature. Be prepared to dismount and walk your bike in several places.

What scenic views and landmarks can I expect along the route?

The trail offers rewarding vistas and breathtaking panoramic views. You'll transition from shaded forest groves to open meadows. The summit provides sweeping views of the Estes Park area, including iconic peaks like Longs Peak and the Twin Sisters Peaks, Signal Mountain, and the foothills and plains of the Front Range. You'll also find open meadow views towards the Mummy Range and sweeping views of the Big Thompson Canyon. A unique point of interest is a historic old mine entrance, now serving as a bat habitat.

Where are the main access points and parking for the Crosier Mountain Loop?

There are three primary access points for the trail: Garden Gate, Rainbow Trail, and Glen Haven. The Glen Haven approach is often considered the gentlest route for ascents. For detailed parking information and directions, it's advisable to check local forest service resources or the komoot tour page for this route.

What is the best time of year to mountain bike the Crosier Mountain Loop?

The best time to ride is typically from late spring through early fall. In spring, the meadows can be vibrant with wildflowers. However, always check current weather and trail conditions before heading out, as conditions can change rapidly, especially at higher elevations.

Do I need any permits or pay an entrance fee to ride the Crosier Mountain Loop?

The Crosier Mountain Loop is located within Roosevelt National Forest. While there isn't typically an entrance fee for the forest itself, some specific trailheads or recreation areas might require a day-use fee or a pass. It's always best to check the official USDA Forest Service website for the most current information regarding permits and fees: usda.gov.

Is the Crosier Mountain Loop dog-friendly?

As part of Roosevelt National Forest, dogs are generally allowed on the trail. However, they must be kept on a leash at all times. Please remember to pack out all pet waste to help preserve the natural environment.

Does the route share sections with other trails?

Yes, the route incorporates sections of several other trails. You will ride along parts of the Crosier Mountain Trail, Glade Road, Crosier Mountain Rainbow Trail, Crosier Mountain Summit Trail, and the Coyote Rock Trail.

What are the main highlights along the Crosier Mountain Loop?

Key highlights on this route include the challenging Rainbow Trail, the summit of Crosier Mountain itself, and sections of the Crosier Mountain Trail, all offering distinct experiences and views.

Is the trail suitable for multi-user access?

Yes, the Crosier Mountain Loop is a multi-user trail. You can expect to share the path with hikers and horseback riders. Always be courteous and aware of other trail users, especially on technical or narrow sections.

What should I be aware of regarding the trail's condition?

The trail sustained significant damage from past floods, leading to badly washed-out and eroded sections. This means you should be prepared for very technical riding, loose granite, and likely sections where you'll need to dismount and walk your bike. Always exercise caution and assess conditions before proceeding.

Nearby routes

Hard

42

Devil's Backbone Indian Summer Loop

01:53h

18.9km

370m

Explore
RoutesRoute plannerFeaturesHikesMTB TrailsRoad cycling routesBikepackingSitemap
Download the app
Follow Us on Socials

© komoot GmbH

Privacy Policy