Arizona's coal production in 2010 was up 3.7% over 2009 to 7.8 million tons, reversing a decline from 8.2 tons in 2006, according to the annual U.S. coal report from DOE's Energy Information Administration.
Arizona's coal comes from the Black Mesa field on the Colorado Plateau, located on the Navajo Nation and Hopi tribal reservations. It is used for electric power generation at the Navajo Generating Station near Page.
[right, coal resources of Arizona. AZGS Bulletin 180]