LOL, Jeff. I'm trying to remember now whether I bought my Wyoming atlas for legitimate professional reasons, or whether I bought it because I was in the local backpacking store right after I read BBM.
I googled the Wind River Reservation, and found info on a couple web pages. The reservation is home to both the Eastern Shoshone and the Arapahoe people... and the fort on the reservation was the original home of the Buffalo Soldiers (of the Bob Marley song).
Some links:
http://www.easternshoshone.net/WindRiverReservation2.htm Information about the reservation. Scroll to the bottom for pictures. If anyone wants a geological explanation of what they're seeing, I can probably figure one out, once I go home and look at my Wyoming geological highway map.
http://www.easternshoshone.net/ The Eastern Shoshone tribe's web page. Lots of history of the treaties... broken treaties, which, given the behavior of the US government towards the tribes, isn't at all surprising. The Arapahoes were put on the reservation after it was established, and the Shoshone still don't sound happy about it.
http://homepages.rootsweb.com/~sabthomp/wyoming/windriver/wywr.htm This page has links to both the Shoshone and Arapahoe stories. The Arapahoe originally lived eastern Colorado, as well as other places on the Plains, but they left Colorado for good after a massacre near Fort Collins.