1. Leasable mineral and waterpower land classification map of the Delta 1° x 2° quadrangle, Utah lands withdrawn, classified, and prospectively valuable for leasable minerals ; occurrences of other selected minerals ; and lands withdrawn or classified for waterpower and reservoir sites / [cartographic material] Yale Public content 1980. 2015-02-27T19:43:18Z. 2015-03-10T22:10:29Z. Banish, Eileen Pera. U.S. Geological Survey. English. Public. Utah.