Most of the lands underlain by potash in Arizona's Holbrook basin are private or trust lands held by the Arizona State Land Dept. Except of course, for the large block right in the center in Petrified Forest National Park.
Joe Dixon in State Land Dept. was kind enough to send us the latest lease map for the area.
There are tribal lands in the northeast and BLM lands in the southwest, but you can see the brown and blue State Trust Lands and the private lands in white dominate the area.