You searched for: Institution University of Michigan. Libraries Remove constraint Institution: University of Michigan. Libraries Language UND Remove constraint Language: UND Place Boulder Remove constraint Place: Boulder Place Bull Gulch, foothills of Front Range between Plainview and Eldorado Springs Remove constraint Place: Bull Gulch, foothills of Front Range between Plainview and Eldorado Springs Place Colorado Remove constraint Place: Colorado Topic Lichens Remove constraint Topic: Lichens Type still image Remove constraint Type: still image