U.S.A., Colorado, Boulder, Bull Gulch, between Plainview and Eldorado Springs
38.4759 -105.61076 +-2700m.
2000 meters (6560ft)
North-facing granite ledges of canyon wall; on granite
Rare and local, seldom occurring at such a low altitude.; Lichenes Exsiccati Distributed by the University of Colorado Museum, Boulder; William A. Weber, Curator|6