You can search this map by county. Or you can search by photographer, location, and some other criteria. Note that if you click the photos a second time, they are shown bigger. Too bad you can't do a slide show....
This photo was taken in the county where I grew up by Arthur Rothstein. He had a job with the federal government documenting life in America, especially the more remote places it seems. He took a lot of photos in Rosebud County (Montana) where I grew up. It was certainly remote.
This one shows a phone on a ranch in Rosebud county almost ten years before I was born. Having a phone that early in Rosebud County is amazing to me. Our closest access to a phone was twelve miles away at the local country store. We didn't have a phone on the farm until sometime in the sixties. I guess some parts of Rosebud County (like where I was) were more remote than others!