I've seen pictures of this arch at Bighorn Canyon before, and haven't been able to locate it. But after visiting a 3rd time, I finally found it. The arch frames an incredible view of what is sometimes called Montana's Grand Canyon. After waiting here until 9PM, I gave up on seeing any color in the sky. But before I could make it back to my car, an orange glow emerged in the west and pink clouds briefly overtook the sky. I hurried back to the arch to take this final picture. It always amazes me just how empty this place is. It's not unusual to see more wild horses than people. I had to drive very carefully back to the campground to avoid hitting the mustangs that were standing on the road in the dark.