http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Leasable mineral and waterpower land classification map of the Great Falls 1⁰ x 2⁰ 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lands withdrawn, classified and prospectively valuable for leasable minerals; occurrences of other selected minerals; and lands withdrawn or classified for waterpower and reservoir sites
compiled by Andrew F. Bateman, Jr., and George S. Yamamoto.
Miscellaneous investigations series (Geological Survey (U.S.)) ; map I-1101