United States, Utah, Washington, Mohave Desert, south end of Little Round Valley, SE of bend in the Virgin River, 1.7 miles W of Interstate 15, 1 mile N of the AZ state line, 6 air miles S of St. George.
37.0188889 -113.6513889
Black, slaty-shale terrace flats, often with will developed cryptogammic soil crust. With scattered Chrysothamnus, Lycium andersonii, Hymenoclea salsola, Hilaria jamesii, Larrea tridentata, and Bromus rubens. Soil derived from Harrisburg Member of Kaibab