México, Sonora, Mexico, Sonora, Arizpe Municipio. Sierra San Antonio, Arroyo La Palmilla (=upper Arroyo El Valle drainage), 1.4 km W and 1.2 km S Rancho El Valle.
30.32916667 -110.3805556
1300 meters (4264ft)
Pine-oak-woodland; N-facing rhyolite slope. Bosque de Encino.