USA, Arizona, Pinal, Superstition Mountains, Arnett Canyon, 0.8 miles E of base of Picketpost Mountain, ca 1.5 miles S of US Hwy 60, 2.5 air miles SE of Superior. T2S R12E S17 NW4 of NE4NE4
33.263435 -111.134382
UTM 12S 487484E 3680500N NAD83
780 meters
2560ft
Opening in canyon in Prosopis juliflora-Acacia community on sandy-rocky alluvial terrace at base of rocky slope of Carnegiea and Cylindropuntia.