Mexico, Sonora, Santa Ana, Sierra Cucurpe, Arroyo El Cajon, 19.5 mi. (31.4 km) (rd.) E Hwy 15, on road from 1.1 miles (1.8 km) south of Estacion El Llano, 20.9 miles (33.6 km) (air) SE Santa Ana.
30.33559 -110.86002 +-100m. NAD 83
944 meters
3096 feet
Cottonwood-sycamore-willow dominated riparian community in mountainous Sonoran upland Sonoran desertscrub.
Moist, stony soil.
Populus fremontii, Platanus wrightii, Prosopis velutina.