1. Leasable mineral and waterpower land classification map of the Great Falls 1° x 2° quadrangle, Montana : lands withdrawn, classified and prospectively valuable for leasable minerals; occurrences of other selected minerals; and lands withdrawn or classified for waterpower and reservoir sites Yale Public content 1978. 2014-05-28T14:16:52Z. 2022-12-08T04:41:58Z. Bateman, Andrew F. U.S. Geological Survey. English. Public. Montana and Montana.