Minnesota Historical Aerial Photographs Online (MHAPO)

The points in this dataset represent the approximate geographic location of the centroids for scanned, non-georeferenced air photos that were captured between 1923 and 2007 and are freely available via the John R. Borchert Map Library and the Minnesota Department of Natural Resources.<br/><br/>The images were captured by a variety of government entities to address a wide range of applications. Images were scanned at resolutions ranging from 150 to 1200DPI. The collection includea a mixture of black & white, true color and infrared photographs. Various image collects were taken at a range of flight heights depending on the year and purpose of the collect.