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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
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6.

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.

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Aerial Photography Dates: Iowa, 1950s university-of-iowa

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

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Aerial Photography Dates: Iowa, 1970s university-of-iowa

1970. Iowa Department of Natural Resources. This shapefile has centroids with dates of all images used in this dataset.

10.

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.

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Five to Fifteen Feet Higher: Iowa university-of-iowa

Iowa Department of Transportation. Used by Districts to show the difference between the LiDAR collected clearance and what we had on record.

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Five to Fifteen Feet Lower: Iowa university-of-iowa

Iowa Department of Transportation. Used by Districts to show the difference between the LiDAR collected clearance and what we had on record.

19.

Four-Band Aerial Photography of Iowa: Iowa, 2007 university-of-iowa

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.