United States, Texas, Val Verde, W side of main road ca. 0.8 mi N of HQ complex, ca. 4.7-4.8 airmiles NE of mouth of Little Satan Canyon at Devils River. Satan Canyon Quadrangle. Devils River State Natural Area Southern Unit.
29.74205 -100.94783
In disturbed soils along edge of main road crossing flat plateau top underlain by limestone.