United States, California, Plumas, Little Grass Valley Reservoir, where Spanish Ravine flows into the lake, south-west of Black Rock Creek, about 4 miles north-west of La Porte.
39.715556 -120.984167 +-805m. NAD83
39§ 42m 56s N; 120§ 59m 3s W
1585 meters
5200ft.
Common Cryptantha. On dry soil , above the high water line of [reservoir]. Uncommon. Flowers white. Red Fir Forest.