The aerial photos were taken of the US as early as 1924 to use in making US Geological Survey maps. But in the 1930's the Department of Agriculture took many more to map soils to aid the farmer and thus many areas where photographed usually from a couple thousand feet up to "gonna need oxygen limit". The National Archives in College Park Maryland has the film and the film indexes which reduce mosaics of the photos themselves. Find a mosaic index of an area, then find a photo number, get the film cannister, and roll to the specific photo, and then order a print copy or a negative. Usually the photo is a othographic photo, meaning the land looking straight down (or verticle) but some in the collection are oblique which tends to show other details. The Army seemed to do a lot of oblique photos of areas in the US during the WWII and I have some of areas in West Virginia that I;ve used for hiking. All the above means basically that one has to go to College Park, Md and see the photo to decide if it would be useful. Remote ordering could/can be done however I assume the cost goes up beyond the $10-15/photo price. I'll find out what detail the Archive people need to send a photo of a specific area, maybe it is just as simple as sending a circles area on a roadmap. Happy New Year All. Good Hunting! PS: You can get current photos of most areas in the US from county governments. The counties tend to fly full county area photo coverage on a periodic basis, some yearly, some every two years, others longer periods. These photos are by local aerial photo contractors and the county governments won the film and sell copies. Some of this photography is now coming available in digital form also.