United States, Arizona, Mohave, Lake Mead NRA. Grand Wash Bay area; 2.8 mi. SE of Tassi Springs on westerly toeslope of high ridge (X2227). NPS-NVMP plot 02518. Desert pavement of exposed, fractured shale bedrock, and with comparatively little annual cover.
36.23156 -113.91653 +-5m. WGS84
T33N R15W S25 NE1/4
630 meters (2066ft)
Psorothamnus fremontii/Ambrosia dumosa shrubland with Ephedra, Krameria, and occ. Larrea.