3.1
(19)
67
hikers
06:11
21.2km
540m
Hiking
This difficult 13.2-mile loop in Lory State Park offers challenging hiking, 1760 feet of elevation gain, and panoramic views of Horsetooth R
Last updated: February 26, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Waypoints
Start point
Parking
Get Directions
10.1 km
Highlight • Parking
Tip by
11.8 km
Viewpoint
Viewpoint
12.7 km
Arthurs Rock
Peak
18.8 km
Highlight • Viewpoint
21.2 km
End point
Way Types & Surfaces
Way Types
14.2 km
7.01 km
< 100 m
Surfaces
21.0 km
190 m
< 100 m
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Elevation
Highest point (2,060 m)
Lowest point (1,660 m)
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Weather
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Today
Saturday 9 May
23°C
7°C
13 %
Additional weather tips
Max wind speed: 22.0 km/h
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This route was planned by komoot.
The Lory State Park Loop Trail typically starts near the Arthur's Rock Trailhead. You'll find designated parking areas within Lory State Park. Be aware that parking can fill up, especially on weekends, so arriving earlier in the day is recommended.
Yes, Lory State Park requires a valid Colorado State Parks pass for entry. You can purchase a daily pass at the park entrance or display an annual pass. This fee helps maintain the park's facilities and trails.
The Lory State Park Loop Trail, as mapped on komoot, is rated as difficult due to its 21 km (13 miles) distance and over 500 meters (1,600 feet) of elevation gain. While Lory State Park offers easier options, this specific loop is best suited for experienced hikers with good fitness levels. If you're a beginner, consider shorter, less strenuous loops within the park like the South Valley Loop or Well Gulch Nature Trail.
The terrain on this loop is quite varied, encompassing forested mountainsides, open meadows, and shrubby hillsides. You'll encounter a mix of dry drainages, Ponderosa pine and fir forests at higher elevations, and areas with rock outcroppings. Some sections can be quite steep, though most inclines are generally manageable.
This route offers several scenic highlights. You'll experience panoramic views of Horsetooth Reservoir, especially from points like the View of Horsetooth Reservoir from Lory State Park. The trail also passes by prominent granite formations, including Arthur's Rock, which is a significant landmark within the park.
Lory State Park is home to diverse wildlife, including mule deer, coyotes, raccoons, and various bird species. You might also spot raptors soaring overhead. The plant life varies from montane coniferous forests to foothills shrub and grassland communities. In spring, wildflowers can dot the slopes, and in the fall, aspens turn golden.
Yes, dogs are generally allowed on trails in Lory State Park, but they must be kept on a leash at all times. Please remember to pack out all pet waste to help keep the park clean and enjoyable for everyone.
The trail is generally accessible year-round. Spring offers wildflowers and pleasant temperatures, while fall brings beautiful golden aspens. Summer can be hot, so an early start is advisable. Winter hiking is possible, but some sections may require microspikes due to ice or snow.
Yes, this extensive loop utilizes several official trails within Lory State Park. You will hike sections of the Timber Trail, Arthur's Rock Trail, and East Valley Trail, among others, as you navigate the park's diverse landscape.
There is no potable water directly available along the entire 21 km loop, so it's crucial to carry enough water for your entire hike. Lory State Park has restrooms at trailheads. For additional amenities like cafes, pubs, or accommodation, you'll find plenty of options in nearby Fort Collins, just a short drive away.
Lory State Park has a complex network of trails. While this komoot tour provides a specific route, it's always a good idea to carry a map or use a GPS device to stay on track, especially since many trails are multi-use and can be shared with mountain bikers and horseback riders. Pay attention to signage to ensure you follow the intended loop.