United States, California, Sonoma County, Sonoma County: Mayacmas Mountains, Big Sulphur Creek drainage, Cadd Fire trail about 2.3 miles NW Contact Mine. (Notebook says 'Mt Baby Rocks' on crest of main ridge 2 mi n.w. Socrates Mine between Big and Little Sulphur Creek drainages. Exact location unknown. Coordinates estimated by label maker.)
38.773611 -122.791667 +-500m. WGS84
T11N, R8W, Sect. 30, SE 1/4, SW 1/4; 38° 46m 25s N; 122° 47m 30s W
On rocks in crevice on exposed rock ourcrops. Along crest of ridge mostly shistrock.