http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
DOQ, digital orthophoto quadrangle data : FIPS code 48361 : US GEODATA
Relief shown by contours and spot heights.
"Monochrome 1-meter pixels"--Container insert.
Systems requirements: An 80386 IBM compatible computer with MS-DOS version 3.1 or later, and 640K of RAM, and a CD-ROM reader using Microsoft Extensions, version 2.0 or later.