New Almaden Area Mines — Rockhounding in Santa Clara County, California
New Almaden is not just a cinnabar stop, it is one of California's classic mercury districts, hosted in altered serpentinite and silica-carbonate rock. Mindat records cinnabar, native mercury, metacinnabar, apophyllite, gyrolite, chalcedony, and opal, while USGS Professional Paper 360 makes the district one of the state's best documented quicksilver localities. Reported finds include chert, cinnabar, apophyllite, gyrolite. Below: coordinates, access notes, nearby spots, and trip-planning links.
New Almaden Area Mines photos
Public image records connected to this spot or its reported material, with source and license attribution.
Map showing New Almaden Area Mines in Santa Clara County, California
Quick details
- Access
- Public area
- County
- Santa Clara County
- State
- California
- Nearest road
- Bertram Road
- Postcode
- 95120
- Coordinates
- 37.17601, -121.82080
Land & collecting status
Generally open to casual rockhounding
Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig.
Public-land rules vary by agency, season, and field office. The RockHoundR app pulls live BLM, USFS, NPS, and tribal overlays so you can see exactly which agency manages the ground at this spot.
Sources & verification
Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.
State guidance last verified:
- BLM California — Recreational mineral collecting
- California Geological Survey
- CDFW — Suction Dredge Mining Permit Program
- Community submissions reviewed against published agency rules
Found at New Almaden Area Mines
Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.
- ChertEncyclopedia →
- CinnabarEncyclopedia →
- ApophylliteEncyclopedia →
- GyroliteEncyclopedia →
Nearby rockhounding spots
Other rockhounding spots within driving distance of New Almaden Area Mines.
- Guadeloupe CreekSanta Clara County, California · 5 mi awayDendritic Agate
- Morgan Hill CreeksSanta Clara County, California · 12 mi awayPoppy Jasper
- Coyote CreekSanta Clara County, California · 13 mi awaySiderite
- Alum Rock ParkSanta Clara County, California · 15 mi awayAlbandite, Hausmannite, Tephroite
- Coyote PointSan Mateo County, California · 40 mi awayChert, Jasper
- Crystal Springs ReservoirSan Mateo County, California · 40 mi awayChromite
- Limekiln Creek Beaches AreaMonterey County, California · 82 mi awayRhodonite, Axinite, Nephrite Jade
- Aurora Mine (permission required)San Benito County, California · 83 mi awaySerpentine
New Almaden Area Mines FAQ
Why is New Almaden Area Mines one of the best rockhounding spots in California?+
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