I found a digital camera by the side of the road near Estes Park, CO, and would be glad to return it to its owner if I can find him!
The pictures in the camera start in Missoula, Montana on 8/25/07, and show a group of 6 men camping and cycling through down through Montana, Idaho, Wyoming (including Yellowstone), pulling into Estes Park on 9/11. One of the early pictures showed the front of the Adventure Cycling in Missoula (I've contacted them already).