Vote for your favorite mineral in #MinCup26! - Bournonite vs. Vesuvianite
Cogwheels of bournonite are up against colourful vesuvianite.
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Deep Gulch placer (New Almaden placers & dumps), New Almaden, New Almaden Mining District, Santa Clara County, California, USAi
Regional Level Types
Deep Gulch placer (New Almaden placers & dumps)Placer
New AlmadenTown
New Almaden Mining DistrictMining District
Santa Clara CountyCounty
CaliforniaState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearchMineralogy
Latitude & Longitude (WGS84):
37° 10' 24'' North , 121° 49' 24'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Seven Trees1,788 (2018)12.6km
Communications Hill11,267 (2019)13.1km
Cambrian Park3,282 (2018)13.3km
Lexington Hills2,421 (2011)13.3km
Los Gatos30,705 (2017)14.6km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Santa Clara Valley Gem & Mineral SocietySan Jose, California19km
Santa Cruz Mineral and Gem SocietySanta Cruz, California29km
Peninsula Gem & Geology Society, Inc.Los Altos, California35km
Mindat Locality ID:
92232
Long-form identifier:
mindat:1:2:92232:5
GUID (UUID V4):
0


A former placer Hg occurrence/mine located in the NE¼SE¼SW¼ sec. 5, T8S, R2E, and in the center SE¼ sec. 2, T9S, R1E, MDM, 0.6 km (0.3 mile) SW of New Almaden, along Deep Gulch and Almaden Canyon (Alimitos Creek), on county owned land (Almaden Quicksilver County Park). Discovered accidentally by H.F. Austin. Produced during the period 1945 to 1947. MRDS database stated accuracy for this location is 10 meters. The USGS MRDS database links 2 separate but nearby localities.

Mineralization is hosted in gravel. The ore body is 6.1 meters thick and was derived from the Deep Gulch drainage area. Controls for ore emplacement included abrupt changes in stream gradient. Local rocks include Quaternary alluvium and marine deposits and/or rocks of the Franciscan Complex, unit 1 (Coast Ranges).

Workings include unspecified surface openings.

Production data are found in: Bailey & Everhart.

Production statistics: Year: 1947 (period = 1945-1947): Hg (erstimate): nuggets averaged 75% cinnabar.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


1 valid mineral.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Cinnabar2.CD.15aHgS

List of minerals for each chemical element

SSulfur
S CinnabarHgS
HgMercury
Hg CinnabarHgS

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 4, 2026 00:49:46 Page updated: July 23, 2026 19:12:31
Go to top of page