Notable features of this state include Petrified Forest, Monument Valley, the Painted Desert, and the Sonoran Desert, while its longest river is the Gila [HEE-lah] and its second-most populous city is Tucson.  
Two neighboring counties in the southeast of this state are Greenlee and Graham, whose county seats are Clifton and Safford, respectively. The highest point in this state is Humphrey's Peak, and its second most populous county is Pima County. [*]  Notable features of this state include Petrified Forest, Monument Valley, the Painted Desert, and the Sonoran Desert, while its longest river is the Gila [HEE-lah] and its second-most populous city is Tucson.  For 10 points, name this state that includes Grand Canyon National Park, with capital at Phoenix.
Two neighboring counties in the southeast of this state are Greenlee and Graham, whose county seats are Clifton and Safford, respectively.
Arizona [JaC]