http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
County map series (planimetric), [Illinois]
Illinois, 1:100 000-scale planimetric map
maps : color ; on sheets 62 x 112 cm. or smaller.
produced by the United States Geological Survey in cooperation with state of Illinois agencies.
Panel title: 1:100 000-scale planimetric map.
Includes location diagram and index to 1:24 000-scale maps.
Scale 1:100,000. 1 cm. on the map represents 1 km. on the ground ;