http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Status and progress of topographic mapping
In upper margin: United States, Department of the Interior, Geological Survey, National Mapping Program.
Includes insets of Alaska, Puerto Rico and Virgin Islands, American Samoa, Guam, and Hawaii.
Topographic mapping status and progress of operations