Redhawk, you have similar luck to me. One trip I shot a caribou about 3/4 to 1 mile from camp, with some mucky tundra to cross. And it was only about 4 weeks after my appendix surgery. The rest of the group took caribou within 50-400 yards of camp over the following days. Then the caribou disappeared. We had seen 100's on the flight in. We saw 1 on the flight out. When they leave, THEY LEAVE.
Good luck.