The Four Corners region is infamous for some of the most diverse mountain bike trail systems.
Colorado ➠ Southwest Colorado Mountain Bike Trails New Mexico ➠ Northwest New Mexico Mountain Bike Trails
The Old Spanish National Historic Trail known as the "longest, crookedest, most arduous pack mule route in the history of America" runs through New Mexico, Colorado, Arizona, Utah, Nevada and California.
➠ Old Spanish Trail
Four Corners National Monument
Monument Valley Navajo Tribal Park, AZ
Mesa Verde National Monument, CO
Chaco Culture National Historical Park, NM
Canyonlands National Park, UT