We did a few day trip out to the Hopi Reservation, There is no photography on the Reservation but here a few photos from the trip. Our Hopi guide did allow me to photograph some amazing Petroglyphs.
Colorado River in Marble Canyon, AZ. Just below the launch point for river trips:
The Elephant Feet outside Tuba City, AZ, Navajo Reservation:
Coal Mine Canyon in the Navajo/Hopi Joint Use Area:
Taawaki Petroglyph site, Hopi Reservation. Over 1000 drawings, simply amazing:
Our guide, Donald Dawahongnewa, was excellent, he's a Hopi educator and does site interpreting around UT/AZ: