Walker Ranch, Ethel Harrold, and Canyon Falls

Head out on this 3.5-mile out-and-back trail near Boulder, Colorado. Generally considered a moderately challenging route, it takes an average of 1 h 43 min to complete. This is a very popular area for birding, hiking, and mountain biking, so you'll likely encounter other people while exploring. The best times to visit this trail are March through October. Dogs are welcome, but must be on a leash.