United States, California, Modoc, Modoc Plateau; Big Valley; Ash Creek Wildlife Area; ca. 5.7 air-miles northeast of Bieber, ca. 7.6 air-miles west of Adin, ca. 1.5 air-mile southeast of Pilot Butte summit, meadow at northern edge of Ash Creek Floodplain (Big Swamp) at southeast base of Pilot Butte. T39N R08E S30 NE1/4 USGS Quadrangle: Big Swamp 1:24,000
41.195833 -121.089722
T39N R08E S30 NE1/4; 41§ 11m 45s N; 121§ 5m 23s W
1259 meters
4130ft.
Wet Meadow-low Sagebrush Scrub ecotone at northern edge of creek floodplain.