http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
U.S. Department of Agriculture, Forest Service ; ... with revisions and minor field corrections by Geometronics Unit, U.S. Forest Service, Regional Office, Milwaukee, Wisconsin.
Relief shown by contours and spot heights.
"Maps photographically reproduced from 1:62,500 scale U.S. Geological Survey Standard Accuracy Maps."
Contents: T.44N., R.37W., Iron County, Michigan.