http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Photogeologic and reconnaissance geologic map of the Knowlton quadrangle, Custer County, Montana
1 map ; 58 x 40 cm., on sheet 70 x 76 cm., folded in envelope 25 x 32 cm.
by Stanley J. Luft, Roger B. Colton, and Edward L. Heffern ; prepared in cooperation with the U.S. Bureau of Land Management.
Relief shown by contours and spot heights.
Miscellaneous field studies ; map MF-1697