%0 Generic %T Colorado Wilderness Areas hearings before the Subcommittee on Public Lands, Committee on Interior and Insular Affairs, United States Senate, Ninety-Third Congress, first session. %U https://ezaccess.libraries.psu.edu/login?url=http://congressional.proquest.com/congcomp/getdoc?HEARING-ID=HRG-1973-IIA-0101