USDA Aerial Photo Index Web Map

To better aid and streamline access to ASU Library’s collections of aerial photography, the Map and Geospatial Hub is actively creating web map indices. These interactive web maps show the extent of coverage for the photos with the intent of helping aid researchers in discovering resources.

The latest USDA Arizona Photo Mosaic Index (1940-1964) web map serves as a resource to find aerial photo mosaic images produced for the United States Department of Agriculture. This set of historic photography includes portions of Maricopa, Pinal, Pima, and Prescott areas of Arizona. Digital copies of these aerial photo mosaic indices are immediately accessible via Dropbox.

Use the USDA Arizona Photo Mosaic Index (1940-1964) web map to find which USDA aerial photos might best serve your research and education needs:


Navigate through the map to identify your geographic area of interest. Select the relevant mosaic footprints to learn more about each mosaic photo, including its image file name (which can be downloaded directly in Dropbox). You can turn layer visibility on and off to view the geographic coverage offered by each set of USDA aerial photo mosaics.

Glendale, 1949, USDA Aerial Photo Mosaic
Glendale, 1949, USDA Aerial Photo Mosaic

  • Geographic Coverage:
    • Maricopa County, AZ (1949, 1954, 1958, 1964)
    • Prescott and Phoenix regions, AZ (1940)
    • Pima County, AZ (1949, 1954)
    • Pinal County, AZ (1949, 1954)
  • Time Range: 1940-1964
  • Cartographic Scale: 1:20,000 or 1:31,680

To learn about other aerial photos in the collection visit our Aerial Photography page.

By Karina Wilhelm, Map Specialist