United States, California, Butte, Marsh/mdw at upper reach of Brush Creek, ca 1.5 mi S of "town" of Brush Creek. T21N R06E S20 borderline sec. 17 USGS Quadrangle: Brush Creek 1:24,000
39.669444 -121.329444 +-402m. NAD83
T21N R06E S20 borderline sec. 17; 39§ 40m 10s N; 121§ 19m 46s W