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 Applied Resource Sciences Center (U.S.)
edited and produced by the Bureau of Land Management, National Applied Resource Sciences Center ... in cooperation with the ... Arizona State Office.
Relief shown by contours and spot heights.
Includes location map and indexes to adjoining maps and to 1:24,000-scale maps.
Scale 1:100,000. 1 cm. on the map represents 1 km. on the ground ;