Climb Greyrock Mountain
Colorado › Greyrock Trailhead
Added by Josiah Roe
Only 30 minutes from downtown Fort Collins, climbing Greyrock Mountain takes you through the Cache La Poudre Canyon, the desolate remains of the 2004 Picnic Rock Fire, and leads to a beautiful granite dome that towers 2,000' above the surrounding terrain and provides excellent hiking, climbing, and views of the Comanche Peak Wilderness and Rocky Mountain National Park.
The main trail begins at the Cache La Poudre river on the Poudre Canyon Highway about 30 minutes from Fort Collins. After about .75 miles the trail splits. To go left on Greyrock Meadows trail adds 2 miles to your trip and provides excellent views of Greyrock Mountain and Meadows from the south, eventually connecting back with Greyrock Mountain trail. Going right on Greyrock Mountain Trail takes you directly up the gulch to the base of Greyrock.
From either direction, follow the trail till you reach the base of Greyrock, taking it around to the north side. On the north side it's easy to lose the trail and end on a dead-end ledge on the east side. Be sure to contour around to the north until the trail becomes apparent. There are signs.
Keep heading south across the meadow and over the large slabs of granite past a large pool until the obvious summit on the south end is gained.
In 2004 a 9,000 acre forest filed called the "Picnic Rock Fire" decimated the area. Geologically, Greyrock Mountain is a visible outcropping of the Log Cabin Batholith, a glacier-eroded igneous intrusion into the overlying gneiss and schist of slightly-pink Silver Plume Granite that formed over 1.4 billion years ago.
- No permits are required to hike Greyrock Mountain and camping is permitted anywhere in the area as long as you are .25 miles from the Cache La Poudre River or at one of the designated campsites on the river.
- Necessary gear/equipment is season-specific, but water, sunscreen and trail food are always a good idea, as there is no reliable source of water year-round on the trail and exposure to the sun is persistent on most of the trail.
- There are numerous rock climbing routes on Greyrock, from 5.5 to 5.10b. More info can be found here.
Greyrock Mountain is managed by the USFS Canyon Lakes Ranger District and can be contact at:
1311 South College
Fort Collins, CO 80524
Please respect the places you find on The Outbound.
Always practice Leave No Trace ethics on your adventures. Be aware of local regulations and don't damage these amazing places for the sake of a photograph. Learn More
Backpacking, Camping, Chillin, Fitness, Hiking, Photography, Rock Climbing, Running
Are we missing something?Suggest an edit
ReviewsLeave a Review
Great Day Hike
If you live in the Fort Collins area this is a must. It starts out pretty gradual and ends up climbing up the rocky summit. It's a little challenging at the end but very fun and rewarding. The peak has some amazing views and a great pool to picnic by. Look out for snakes and bring lots of sunscreen and water.
More Adventures Nearby
Snowshoe Jim Creek Trail
Colorado / Jim Creek Trailhead
Starting at 9,220 feet of elevation, this 5 mile out-and-back snowshoe begins its 965 foot elevation gain meandering through a quiet forest.
Run the Challenge Hill
Colorado / Challenge Hill Parking
The Basics: The Challenge Hill, or as I like to call it, the Mini-Incline, is a shrunken version of its big brother to the south in Manitou.