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You searched for: Publisher State of Iowa Remove constraint Publisher: State of Iowa Public/Restricted Public Remove constraint Public/Restricted: Public Subject Imagery and Base Maps Remove constraint Subject: Imagery and Base Maps Place Iowa Remove constraint Place: Iowa
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university-of-iowa

6. Aerial Photography Dates File: Iowa, 1930s

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

7. Aerial Photography Dates: Iowa, 1950s

1950. Iowa Department of Natural Resources. Zipped file Contains a dateset of the centroids, with dates, of the individual images used.
university-of-iowa

10. Andreas Atlas Counties: Iowa, 1875

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