On the back country tour of Monument Valley our guide took us to the remarkable arch called Eye of the Eagle. The photo shows the scale of the rock formation with some people on the bottom edge of the photo. I could just barely get it in the frame with the one lens I had on the jeep tour. The interesting thing was if you lay on your back under the arch you could see the outline of the eagle where rock layers had peeled off and the arch fit perfectly into that space for its eye.