United States, Arizona, Pima, Rincon Peak 7.5' USGS topographic Quadrangle: 12S 05 37 100mE 35 48 250mN. Rincon Mountains, Posta Quemada Canyon, 20 km southeast of the edge of Tucson, 2.5 km west-southwest of Papago Spring.
32.071667 -110.606667 NAD 27
1103 meters Verbatim Elevation:
Flood plain of narrow valley, desert scrub. Local, near housing pad, probably planted here.