Kitt Peak, Quinlan Mountains, Sonoran Desert, Arizona; Gordon Haxel (L) (US Geological Survey) points out to an Arizona Geological Society field trip group Jurassic rock features. Bob Powell (R) help holds the map. (Photo by Bob Kamilli, USGS)
USGS online resource: Mineral resources of the Baboquivari Peak and Coyote Mountains Wilderness Study Areas, Pima County, Arizonahttps://pubs.er.usgs.gov/publication/b1702E
