Horsetooth Rock – Arthur's Rock loop from Horsetooth Mountain Open Space

Routes

Running trails & routes

United States

Colorado

Larimer County

Horsetooth Rock – Arthur's Rock loop from Horsetooth Mountain Open Space

Hard

4.9

(9070)

10,310

runners

Horsetooth Rock – Arthur's Rock loop from Horsetooth Mountain Open Space

04:36

35.0km

1,060m

Running

Hard run. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required. The starting point of the route is right next to a parking lot.

Last updated: October 9, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Lory State Park

Roosevelt National Forest

Waypoints

Start point

Parking

Get Directions

562 m

Intersection of Horsetooth Rock and Horsetooth Falls trails — great views

Highlight • Trail

After climbing up the hilly meadow on the well-worn Horsetooth Rock Trail you hit a small ridge line where you get great panoramic views of the surrounding area. This is …

Tip by

2.24 km

Horsetooth Rock Trail (Steep Steps)

Highlight (Segment) • Trail

After passing a large, crumbly rock formation the trail trends steeply upward. After climbing some wooden stairs you are rewarded with a great overlook, which is a nice spot to …

Tip by

4.43 km

Horsetooth Rock

Highlight • Summit

After scrambling up a series of short, but exposed feeling, ramps and ledges you reach the top of the iconic Horsetooth Rock. You get fantastic panoramic views from this long, …

Tip by

15.8 km

Arthur's Rock

Highlight • Summit

Arthur's Rock lies just off the main Arthur's Rock Trail down a short spur trail. After cresting a steep gully you arrive at the summit of the very popular Arthur's …

Tip by

17.8 km

Steep Switchbacks on the Timber Trail

Highlight (Segment) • Trail

This short, but steep section of switchbacks between the junction of the Westridge and Timber Trail and the junction of the West Gulch and Timber Trail packs a punch! Fortunately …

Tip by

23.2 km

East Valley Trail

Highlight (Segment) • Trail

The East Valley Trail runs parallel to the main road through a beautiful open meadow. You get fantastic views of the striking red cliffs that separate the meadow from the …

Tip by

26.7 km

Arthur's Rock Trailhead

Highlight • Parking

The Arthurs Rock Trailhead is located at the very end of Lodgepole Drive. There is a large parking area, trail information, and vault toilets. From this trailhead you can access …

Tip by

30.1 km