Greyrock Mountain

Greyrock is one of the most heavily used trails in Northern Colorado.

photo: Greyrock Trail. Photo by USFS.

Length: 3.10 miles
Loop Trail? No
Type: Backcountry
Agency: USDA Forest Service
Entry Fee? No
Parking Fee? No

Allowed Uses:

Dogs - On leash
Pedestrian - Walking/Hiking/Running

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Location: 15 miles west of Ft. Collins, CO. on CO Hwy 14., In Arapaho-Roosevelt National Forest 20 mi. NW of Fort Collins on SR 14.
State(s): Colorado
Counties: Larimer
Longitude: -105.283
Latitude: 40.69501

Driving Directions

From Fort Collins, take US 287 north to junction with Colorado 14 west. Take Colorado 14 west for 8.4 miles to the trailhead.


One of the busiest trails in northern Colorado. The trail is steep, gaining 2,039 ft in 3.1 miles. Greyrock Meadows Trail (2.6 mi.) is a loop trail off of the Greyrock Trail and can be travelled for different views. Greyrock climbs from the Poudre Canyon alongside the Cache la Poudre Wild and Scenic River. The top of Greyrock provides views of plains out to the east and mouintains to the west. Please stay on the trail.

Additional Details

Width: 18 inches.
Primary Surface: Gravel
Secondary Surface: Gravel

Average Grade: 7%
Maximum Grade: 15%
Elevation Low Point: 5,574
Elevation High Point: 7,613
Elevation Gain (cumulative): Not Available

Year Designated:

Contact Information

For more information and current conditions, contact the trail manager (listed below). For questions, suggestions, and corrections to information listed on the website, contact American Trails.

Trail Management:
Kevin Cannon
US Forest Service
1311 South College
Fort Collins , CO 80524
(970) 498-2719



Greyrock Trail. Photo by USFS.

Greyrock Trail. Photo by USFS.


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