Baboquivari peak, and mountain range. The peak is 7730 feet in elevation, roughly a mile above the basins on either side. 

"Baboquivari " is the Anglicized version of the Tohono O'odham name meaning, "a neck between two heads." It's the Tohono O'odham (Papago) sacred mountain, the place where Elder Brother lives and from which he brought the people (which is what O'odham means) to inhabit this land. Kitt Peak is at the northern end of the range--the home of some of Arizona's most important telescopes.  The dry desert air makes for near ideal observation conditions, though Tucson's light pollution continues to encroach on them.  

"A grey-green forest stretched between jagged volcanic peaks. Up close, it wasn't an impressive forest. Its leafy canopy was sparse and seldom rose above head high, though thick saguaros and the spiked whips of ocotillo branches rose considerably farther. The forest's floor was covered with occasional clumps of grass and a myriad of sharp things, thorned and needled, protruding from soil that was not much duller. The ground seemed equal parts sand, sharp gravel, broken rock, and dust. Teddy bears peered out of those woods, their soft, cuddly forms just one more desert mirage. These were cholla cactuses and their deceptive fur nothing but a pelt of wicked spines. Not a friendly landscape, J.D. decided. On his better days he appreciated its stark beauty for that very reason."

Excerpt from The Grey Pilgrim (2000 edition).