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You searched for: Publisher State of Iowa Remove constraint Publisher: State of Iowa Subject Imagery and Base Maps Remove constraint Subject: Imagery and Base Maps Institution Iowa Remove constraint Institution: Iowa
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7.
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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.

9.
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Aerial Photography Dates: Iowa, 1970s

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