Sierra El Humo

Sierra El Humo, SonoraThe Sierra El Humo are the western-most true Madrean "Sky Island" mountain range. They are about 70 km Southwest of Sasabe and rise from the Sonoran Desert floor sharply.

There are decent patches of oak in north facing canyons and slopes. Blue Oak (Quercus oblongifolia), Emory Oak (Q. emoryi) dominate lower elevations and is often replaced by Arizona oak (Q. arizonica) at higher elevations.

Apparently there is a perennial drainage with fish flowing off the north slope of the mountain (pers. communication with ranch owner).

Peak Elevation: 1,650m / 5,413ft
Principal Land Ownership: Enrique Zeped
Wild Sonora photos

Resources:

Distribution of birds and plants at the Western and Southern edges of the Madrean Sky Islands in Sonora, Mexico