1960. Title supplied by cataloger based on information from sheet labels. Images are photoreductions of mosaics created from original aerial photographs.... United States. Agricultural Stabilization and Conservation Service.
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1960. Title supplied by cataloger based on information from sheet labels. Images are photoreductions of mosaics created from original aerial photographs.... United States. Agricultural Stabilization and Conservation Service.
1970. Title supplied by cataloger based on information from sheet labels. Images are photoreductions of mosaics created from original aerial photographs.... United States. Agricultural Stabilization and Conservation Service.
1840. 1 map.
1850. United States. Surveyor General. 1 map. Surveyor General's Office.
1860. United States. Surveyor General. 1 map. G.P.O.?.
1840. United States. General Land Office. 1 map.
1830. United States. General Land Office. 1 map.
1930. Iowa. State Planning Board. Committee on Soil Conservation. 85 pages in various pagings ; 29 cm. Iowa. State Planning Board. Committee on Soil Conservation.
1930. Iowa. State Planning Board. Committee on soil conservation. [14] pages illustrations, maps ; 20 cm. Iowa. State Planning Board.