I was camped on the Colorado side of Navajo Reservoir this week, and I went to check out this one site I had found before. In the last few years, scavengers have come in and picked clean almost every potsherd laying around. Nothing that would be the centerpiece of your collection, but you could see good examples of different cultures and influences. I still walk it and just look. So I see this one rock, believe me a lot of rocks there, and the groove, like a plow mark if we were in…