http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Mineral resources of the Choteau 1⁰ x 2⁰ quadrangle, Montana
2 maps on 1 sheet ; 45 x 61 cm., sheet 112 x 147 cm., folded in envelope 25 x 31 cm.
Map A.-Map showing areas 1a, 1b, 1c, 1d, 2, and 3 of mineral potential -- Map B.-Map showing areas 4-12 of mineral potential.
by Robert L. Earhart [and others] ; Department of the Interior, United States Geological Survey.
Relief shown by contours and spot heights.
Includes text, location map, and tables.
Folio of the Choteau 1⁰ X 2⁰ quadrangle, Montana
Miscellaneous field studies ; map MF-858-A