Leasable mineral and waterpower land classification map of the Great Falls 1 x 2 Quadrangle, Montana lands withdrawn, classified and prospectively valuable for leasable minerals; occurrences of other selected minerals; and lands withdrawn or classified for waterpower and reservoir sites [report]

1978 unpublished
doi:10.3133/i1101 fatcat:3jeh5efisrbe7icf5tckm2pcx4