San Jose in Santa Clara County, California — The American West (Pacific Coastal)
The “Main Tunnel”
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of New Almaden’s
Castillero claimed his “discovery” and began mining the cinnabar ore, which was known to contain mercury – a valuable liquid metal needed by Mexico to process silver and gold. This Main Tunnel was the principal entrance to the New Almaden Mine, which would grow to become the richest mining area in all of California.
Erected by New Almaden Quicksilver County Park Association.
Location. 37° 10.606′ N, 121° 50.47′ W. Marker is in San Jose, California, in Santa Clara County. Touch for map. This marker is located in New Almaden Quicksilver County Park on the Yellow Kid Trail approximately 0.3 miles from English Camp. Marker is in this post office area: San Jose CA 95120, United States of America.
Other nearby markers. At least 8 other markers The Yellow Kid (about 400 feet away, measured in a direct line); English Camp (approx. 0.2 miles away); English Camp School (approx. 0.2 miles away); Site of English Town ★ CCC Camp Mt. Madonna (approx. 0.2 miles away); Camp Mt. Madonna (approx. 0.2 miles away); The Rossi Retort (approx. ¼ mile away); Mine Hill (approx. ¼ mile away); SpanishTown (approx. ¼ mile away). Touch for a list and map of all markers in San Jose.
Categories. • Industry & Commerce • Native Americans • Natural Resources •
Credits. This page was last revised on June 16, 2016. This page originally submitted on February 19, 2012, by Barry Swackhamer of San Jose, California. This page has been viewed 433 times since then and 32 times this year. Photos: 1, 2, 3, 4. submitted on February 19, 2012, by Barry Swackhamer of San Jose, California. • Syd Whittle was the editor who published this page.