West of Fort Collins and east of Walden, the 71,000 acre Colorado State Forest State Park has 70 miles of non-motorized trails through unaltered forest, jagged peaks and alpine lakes. There are a variety of hiking trails that lead to Ruby Jewel Lake, Kelly Lake, Clear Lake, Agnes Lake and American Lakes. The American Lakes Trail is a 5 mile one-way route leading from forest to meadow to alpine tundra with spectacular views of spire peaks and on into the Rocky Mountain National Park.
To reach the Colorado State Forest from Fort Collins, head west on SR14 for 75 miles across Cameron Pass. About 5 miles beyond the pass, look for the turn off to Crags Campground for access to the American Lake Trailhead.
Overall, American Lakes Trail is the 37th most popular hiking trail of all 72 hikes in Colorado.