No, the route over Guinn Mountain—known as 501 or the Boulder Wagon Road—has been closed to motor vehicles since 1980 and its closure was reinforced in 2006. Please respect the road closure signs at either end; this trail is for hikers, bicyclists, dog walkers, and horseback riders. No motorized route connects across the Continental Divide. Per Stay the Trail Colorado, MVUMs are the legal trails you can recreate on—anything off that is out-of-bounds. Please abide by these limitations for the benefit of our continued access.