Description:North Dakota aerial photography taken 1957 through 1962 at a scale of 1:20,000. This dataset was developed in a partnership with the USDA-Aerial Photography Field Office, the State Water Commission, and the GIS Technical Committee. The photos have been scanned at 1200 DPI and they have about a .47-meter pixel resolution. Please note that these photos have been georeferenced with a minimum number of data points. The photos have not been orthorectified and therefore there will be photo anomalies and mis-matches between adjoining photos. Caution should be exercised if attempting to use this imagery to conduct measurements. This dataset contains a number of areas with missing imagery. Credit: North Dakota GIS Technical Commitee, State Water Commission, USDA-Aerial Photography Field Office, ND GIS Hub