On N-bound old Hwy 101 (P.M. 27.5) (Monterey Rd) 1/2 mi S of Ford Rd, , San Jose,
CA ,
USA
California State Historical Marker
The Indians used pigment from this cinnabar hill for paint. Mercury was mined as early as 1845. The gold discovery made mercury indispensable, and the mine, the most productive in America, became world famous. It sold for $1,700,700 in 1864.