BOUTWELL JM 1912 GEOLOGY AND ORE DEPOSITS OF PARK CITYDISTRICT UTAH USGS PROF PAPER 77 230 PBULLOCK KC 1966 MINERALS OF UTAH UTAH GEOL AND MINERALSURVEY BULL 76 P 35CARNAHAN TS 1905 THE DEVELOPMENT OF THE LITTLE BELL MINEPARK CITY UTAH COLUMBIA UNIVERSITY MA THESIS 93 PCHILDEYS BS 1970 ABSTRACTS OF THESES CONCERNING THE GEOLOGYOF UTAH TO 1966 UTAH GEOL AND MINERAL SURVEY BULL 86 P 34