Find a Map
> Boulder, CO: Fourmile Canyon to Switzerland Trail
Climb dirt roads into the upper reaches of Colorado's Front Range on this 50-mile loop offering iconic Rocky Mountain vistas.
The USGS topographic map below is custom-centered on Boulder, CO: Fourmile Canyon to Switzerland Trail. Customize a map online, and we'll print and ship you a
large-format waterproof map. Custom prints start at only $9.95 for an 18" x 24" field map, but you can build huge 5' x 8' wall posters too!