From 1938 to 1947, the United States Forest Service took thousands of aerial photographs of the state of Colorado. The hope was that these images would be used by agronomists, land use planners, farmers, and other groups with a vested interest in these lands. Today, 1,700 of these images are part of the University of Colorado's Digital Collections. Visitors can search for available images by using a clickable map here, read a set of interpretation tips, and also download the maps for research and other personal uses. Visitors who choose to use the LunaInsight image viewer (also made available here) will have the ability to search images by all data fields, along with being able to zoom in to high resolution images of each photograph. Overall, this is a tremendous resource, and one that will delight and inform geographers, historians, planners, and others with an interest in Colorado.