The Mexican Hat rock is about 60 feet in diameter. I believe it is over 400 feet above the river. If I were to do it again, I would have tried to get closer on the other side of the river. We stopped at the town of Mexican Hat to stock up on water, but we were in rafts and did not have a way to drive to the formation.
I would love to have flown to the top of the Honaker trail, but it was 1200 feet high. I would also have enjoyed flying in the Oljato canyon. It was very narrow and the high walls would have made gps unusable.