1. Aerial Photography Counties: Iowa, 1930s
1930. Iowa Department of Natural Resources. 1930s Aerial Photography of Iowa County dataset in a zipped file.
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2. Aerial Photography Counties: Iowa, 1950s
1950. Iowa Department of Natural Resources. 1950s Aerial Photography of Iowa County dataset in a zipped file.
3. Aerial Photography Counties: Iowa, 1960s
1960. Iowa Department of Natural Resources. 1960s Aerial Photography of Iowa County Dataset in a zipped file.
4. Aerial Photography Counties: Iowa, 1970s
1970. Iowa Department of Natural Resources. 1970s Aerial Photography of Iowa Each zip file contains a county raster dataset.
5. Andreas Atlas Counties: Iowa, 1875
1875. Iowa Department of Natural Resources. 1875 Andreas Atlas of Iowa Each zip file contains a county raster dataset.
6. CIR Aerial Photography Counties: Iowa, 1980s
1980. Iowa Department of Natural Resources. 1980s Color-Infra-Red Aerial Photography of Iowa Each zip file contains a County-wide dataset.
7. County-wide Mosaics of 7.5 Minute USGS Topographic Maps: Iowa
2018. Iowa Department of Natural Resources. Topographic Maps Each zip file contains a MrSid compressed image of the topographic quads of a certain Iowa county.
8. Four-Band Aerial Photography of Iowa: Iowa, 2007
2007. Iowa Department of Natural Resources. 2007, 2009, and 2010 Four-Band Aerial Photography of Iowa Downloads include seperate CIR and color rasters of Iowa Counties flown in 2007.
9. Land Cover of the State of Iowa in the Years 1984-86
1984-86. Iowa Department of Natural Resources. Land Cover of Iowa in From 1984 to 2003 This zip file contains a 15-meter ESRI GRID of the Land Cover of Iowa.