1. Landslide deposits in the Duchesne 30' x 60' quadrangle, Utah [microform] Yale Public content 1989. 2002-06-01T04:00:00Z. 2022-07-05T20:30:14Z. Geological Survey (U.S.). U.S. Geological Survey : [Books and Open-File Reports Section, distributor]. English. Public. Utah and Duchesne County.