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MapDubuque County, Iowa : 1:100 000-scale topographic map Catalog Record Only Relief shown by contours and spot heights. "Compiled from USGS 1:24 000-scale topographic maps dated 1955-1980 ... Planimetry revised from aerial photographs taken 1982-83 ... Map edited 1985." Alternate title: Dubuque Co., Iowa. Includes location map/sheet index, index to topographic maps, location map, and meters/feet conversion table. "42090-E6-CF-100." ARP
- Contributor: Iowa Geological Survey - Geological Survey (U.S.)
- Date: 1985