http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
1:100,000-scale topographic map : 30 x 60 minute series (topographic)
National Science and Technology Center (U.S.)
edited and published by the Bureau of Land Management, National Science and Technology Center ... in cooperation with the ... Montana State Office.
Relief shown by contours and spot heights.
Shows minerals owned by the Federal government.
Includes location map and index to adjoining maps.