Keystone Natural Bridge One
Keystone Natural Bridge One Since Rob visited, Keystone N.B. can now be viewed only on a ranger-conducted tour. Inquire at the Visitors Center for when a tour might be arranged. The span is located in the Blue Mesa area. The turnoff to Blue Mesa is to the left off the main park road about 9 and a half miles south of I/S 40. The unstable condition of the formation probably led to the present access restrictions. See also Keystone N.B. Two.

Photo by Rob Jones
Trip Report


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