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You searched for: Genre Geospatial data Remove constraint Genre: Geospatial data Creator Iowa Department of Natural Resources Remove constraint Creator: Iowa Department of Natural Resources Publisher State of Iowa Remove constraint Publisher: State of Iowa Subject Imagery and Base Maps Remove constraint Subject: Imagery and Base Maps
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4.

Aerial Photography Dates File: Iowa, 1930s university-of-iowa

1930. Iowa Department of Natural Resources. This file contains a shapefile of the centroids of individual scanned photos, and the associated date.

5.

Andreas Atlas Counties: Iowa, 1875 university-of-iowa

1875. Iowa Department of Natural Resources. 1875 Andreas Atlas of Iowa Each zip file contains a county raster dataset.