LIVE REPORT! Munich Show 2026 - last updated 1 hour ago. Click here to watch.
Log InRegister
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreOur ScienceMindat Newsletter [Free Download]Contact Us
Donate to MindatSponsor a PageCorporate SponsorshipSponsored Pages
Learning CenterWhat Is a Mineral?The Most Common Minerals on EarthInformation for EducatorsMindat ArticlesMindat Newsletter [Free Download]The ElementsThe Mineral Quiz
Search FormMinerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDMinerals by CountryAlphabetical Mineral IndexAlphabetical Locality SearchMineral Association SearchList of CountriesLocalities Near MePhoto SearchSearch ArticlesSearch GlossaryThe Rock H. Currier Digital LibraryMore Search Options
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
MineralsPetrologyFossilsMeteoritesGeologic Time
Mining CompaniesStatisticsMineral MuseumsClubs & OrganizationsMineral Shows & EventsDevice SettingsTime Machine
Read DiscussionsIdentification Request
Photo SearchPhoto GalleriesSearch by ColourPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Adams Mine (Adams Tunnel Mine), Cement Creek, Eureka Mining District, San Juan County, Colorado, USAi
Regional Level Types
Adams Mine (Adams Tunnel Mine)Mine
Cement CreekCreek
Eureka Mining DistrictMining District
San Juan CountyCounty
ColoradoState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
37° 54' 1'' North , 107° 38' 32'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Silverton637 (2011)10.0km
Ouray1,008 (2017)13.8km
Telluride2,399 (2018)15.5km
Ophir169 (2017)17.4km
Mountain Village1,395 (2017)19.1km
Mindat Locality ID:
3674
Long-form identifier:
mindat:1:2:3674:3
GUID (UUID V4):
0
Other/historical names associated with this locality:
Adams Lode - Bismark


A W occurrence/mine located in sec. 16, T42N, R7W, NMM, above the east side of the north fork of Cement Creek, just north of Gladstone, on National Forest land. Owned by Thomas J. & Dorothy A. Mahon. Produced in 1899. MRDS database stated accuracy for this location is 10 meters.

Mineralization is a W deposit hosted in Pliocene andesite. The ore body strikes N10E and dips 85SE. Local rocks include intra-ash flow andesitic lavas.

Workings include unspecified surface openings. Underground openings are also apparently present (multiple adits ?).

Production was alleged to be substantial.

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


4 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
ⓘHübnerite4.DB.30MnWO4
ⓘTungstite4.FJ.10WO3 · H2O
Group 9 - Silicates
ⓘRhodonite9.DK.05CaMn3Mn[Si5O15]

List of minerals for each chemical element

HHydrogen
Hⓘ TungstiteWO3 · H2O
OOxygen
Oⓘ HübneriteMnWO4
Oⓘ QuartzSiO2
Oⓘ RhodoniteCaMn3Mn[Si5O15]
Oⓘ TungstiteWO3 · H2O
SiSilicon
Siⓘ QuartzSiO2
Siⓘ RhodoniteCaMn3Mn[Si5O15]
CaCalcium
Caⓘ RhodoniteCaMn3Mn[Si5O15]
MnManganese
Mnⓘ HübneriteMnWO4
Mnⓘ RhodoniteCaMn3Mn[Si5O15]
WTungsten
Wⓘ HübneriteMnWO4
Wⓘ TungstiteWO3 · H2O

Other Databases

Link to USGS MRDS:10108455

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: October 22, 2026 09:04:39 Page updated: December 15, 2025 16:55:20
Go to top of page