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Routes
Running trails & routes
United States
Colorado
Larimer County

South Valley Loop – Arthur's Rock Trailhead loop from Lory State Park

Routes
Running trails & routes
United States
Colorado
Larimer County

South Valley Loop – Arthur's Rock Trailhead loop from Lory State Park

Hard

3.4

(11)

56

runners

South Valley Loop – Arthur's Rock Trailhead loop from Lory State Park

01:46

15.4km

280m

Running

Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: April 2, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Lory State Park

Waypoints

A

Start point

Parking

Get Directions

1

7.77 km

South Valley Loop

Highlight (Segment) • Trail

South valley trail loop is an easy, fast and flowing singletrack loop with great views of the Horsetooth Reservoir.

Tip by

2

9.56 km

South Valley Trail (east side)

Highlight (Segment) • Trail

The South Valley Loop is an incredibly popular hiking and mountain biking trail on the southern end of Lory State park. This half of the loop is on the reservoir …

Tip by

3

11.6 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

B

15.4 km

End point

Parking

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Way Types & Surfaces

Way Types

10.0 km

5.16 km

104 m

< 100 m

Surfaces

15.0 km

347 m

< 100 m

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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 (1,850 m)

Lowest point (1,670 m)

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Weather

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Monday 1 June

24°C

11°C

-- %

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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6

Ginny and Valley Loop Trail

02:14h

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