United States, California, San Bernardino, north side of Turtle Mountains, c. 1 mile south of Mohawk Springs Road at Carson Well and historic Lost Arch Inn
34.41972 -114.83194
711 meters (2332ft)
Base of rhyolite cliffs with Ambrosia dumosa, Brickellia arguta, Pholistoma auritum arizonicum, Encelia farinosa, Trixis californica.