From Great Falls, Montana, go west, take the exit toward Missoula, Montana. Fort Shaw is 25-30 miles from Great Falls.
I've been going to the fishing access area on the Sun River near Fort Shaw for a couple weeks as the whitetail does and fawns are grazing in the evenings. It takes a lot of studying and work to become close enough to them to take their photos but I finally felt like I succeeded. This fawn watched me as I took photos and she seemed very comfortable.