Mexico, Baja California, Sierra La Asamblea: southwest foot of the range near the W edge of Mesa Yubay and the SSW side of Mesa Cuerno de Borrego; ca. 7.0 road miles NNE of the abandoned site of El DesengaƱo
29.205 -114.0139
810 meters
ca. 2526-2657 ft
Broad, braided sandy wash with vegetated "sandbar" benches; N side of the wash marked by steep, dark, rocky volcanic slopes (basaltic?); s side of the wash consisting of low, slightly rolling