Trinity Co., California, USA
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|Location is approximate, based on center of defined region.|
|Latitude & Longitude:||36° North , 118° West (est.)|
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Commodity ListThis is a list of exploitable or exploited mineral commodities recorded from this region.
Mineral ListMineral list contains entries from the region specified including sub-localities
119 valid minerals. 1 (TL) - type locality of valid minerals.
Rock Types Recorded
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Rock list contains entries from the region specified including sub-localities
Select Rock List TypeAlphabetical List Tree Diagram
Entries shown in red are rocks recorded for this region.
- Sedimentary rock and sediment
- Lunar, meteorite and other extra-terrestrial rock and sediment
Localities in this Region
- Trinity Co.
- Coastal Range
- Bear Ridge deposit
- Brush Mountain
- Chicago Rock
- Helmke Manganese group
- Horsehead Mountain
- Irish Mountain
- Island Mountain
- Big Horn No. 1 and No. 2 prospect (part of the Helmke Manganese group)
- Blue Lizard prospect (part of the Helmke Manganese group)
- Helmke Manganese group
- Kekawaka prospect (part of the Helmke Manganese group)
- Montgomery deposit (part of the Helmke Manganese group)
- Schoolhouse No. 1 claim (part of the Helmke Manganese group)
- Shell View deposits (Shellview claims)
- Twisted Oak No. 1 prospect (part of the Helmke Manganese group)
- Mad River Rock
- Neafus Peak
- Bucking Camp deposits Nos. 1 and 2
- Coldwater Nos. 1 and 2 deposits (part of the Helmke Manganese group)
- Corner No. 1 and No. 2 prospects (part of the Helmke Manganese group)
- Maphis Peak No. 1 occurrence
- Moody Manganese deposits (Neafus Peak deposit)
- Rice Road No. 1 prospect (Wool Mountain; Wood)
- Source No. 1 lease
- Summit No. 1 deposit (Wagon No. 1 deposit)
- Tan Oak No. 1 prospect
- White Maple Springs occurrence (McKnight & Kindred)
- White prospect (Maple Springs; Maple Springs deposit; part of the Helmke Manganese group)
- Wood deposit
- Wool Mountain No. 1 and No. 2 claims (part of Helmke Manganese group)
- Norse Butte
- North Kelsey Peak
- Pickett Peak
- Red Mountain
- Red Mountain Creek deposit
- Shannon Butte
- Three Forks
- Van Horn Peak
- Wildhorse Peak
- Woodmans Butte
- Darkman deposit
- Delta Mine
- Klamath Mts
- Barker Mountain
- Big Bar
- Annie and Hall Flat Placer Mine
- Bennett Hydraulic Mine
- Big Flat Placer Mine
- Emma Placer Mine
- Ivy Gulch placer
- Lawrence Placer Mine (Big Bar placer)
- Monkey Creek No. 1 and No. 2 Placer Mine
- Nuggett Placer Mine
- Pattison Placer Mine (Bennett)
- Poor Boy occurrence
- Price occurrence
- Skunk Point Placer Mine
- Strong 1; 2; 3; 4 Placer Mine
- T and T Placer Mine
- Three B S Mine (Fluorite King Mine)
- Tinsley & Treloar placer
- Unnamed Au placer (69)
- Unnamed Au placer (88)
- Virginia Bruce claim (Red Mountain occurrence)
- Wilshire and Peabody Placer Mine
- Boulder Peak area
- Burnt Ranch
- Canyon Creek District
- Caribou Mountain
- Carrville District
- Castle Rock
- Cedar Flat
- Chilcoot Creek-Bear Creek area
- Coffee District (Coffee Creek District)
- Covington Mill
- Deadwood District
- Del Loma
- B. B. Gold & Platinum placer
- Del Loma Limestone deposit
- French Bar claim
- Hayward occurrence
- Highland Placer Mine
- Langs Bar Placer Mine
- Oro Del Lomas occurrence
- P & W Minco occurrence
- Spotted Pup Placer Mine
- Sunday Bar Placer Mine
- Taylor's Flat Placer Mine
- Unnamed Au placer (63)
- Unnamed Stone deposit (2)
- Watson Bar Placer Mine
- Dubakella Mountain
- Hamburg area
- Hawkins Bar
- Hayfork District
- Indian Valley District
- Ironside Mountain
- Junction City District
- Lake Mountain
- Little Bear Lake
- Minersville District
- Monument Peak
- Pony Buck Peak
- Preachers Peak
- Red Rock Mountain
- Salmon Mts
- Scott Mts
- Shingle Shanty
- South Fork District
- South Fork Trinity River
- Thompson Peak
- Trinity Alps Mts
- Trinity Center
- Bloss and McCleary Placer Mine
- Center Placer Mine
- Coyle Placer Mine
- Enright claim
- Estabrook Placer Mine
- Frwethy placer
- Gold Run occurrence (Shoestring; Hornet)
- Haskins Placer Mine
- Pansy Mine
- Poverty Slide Placer Mine
- Shasta Hydraulic Gold Company placer (Alta Bert; Estabrook Gold Dredging Company)
- Unnamed Au placer (104)
- Unspecified Asbestos occurrence (2)
- Yuba Consolidated Gold Fields Mine
- Trinity Mts
- Trinity Village
- Upper Hayfork Creek area
- Weaverville District
- Willow Creek District
- Ycatapom Peak
- Coastal Range
- Trinity Co.
- Trinity Co.
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.
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Shepard, Charles Upham (1885), On meteoric iron from Trinity County, California: American Journal of Science 3rd. series: 29: 469.
Miller, William P. (1890), Trinity County: California Mining Bureau. Report 10: 695-727.
Dunn, Russell L. (1893), Siskiyou, Trinity Counties: California Mining Bureau. Report 11: 420-449, 480-484.
Ward, Henry A. (1904), The Canyon City meteorite from Trinity County California: American Journal of Science, 4th. Series: 17: 383-384.
MacDonald, Donald Francis (1910), The Weaverville-Trinity Center gold gravels, Trinity County, California: USGS Bulletin 430: 48-58.
Brown, G. Chester (1913), The Counties of Shasta, Siskiyou and Trinity: California Journal of Mines and Geology (Report 14): 14(4): 900-901.
MacDonald, Donald Francis (1913), Notes on the gold lodes of the Carrville district, Trinity County, California: USGS Bulletin 530D: 9-41.
Brown, G. Chester (1916b), Shasta, Siskiyou, Trinity Counties: California Mining Bureau. (Report 14): 14(4): 745-925.
Bradley, W.W., Huguenin, Emile, Logan, C.A., Tucker, W.B., and Waring, C.A. (1918), Manganese and chromium in California: California Mining Bureau. Bulletin 76: 89.
Tucker, W. Burling (1922), Gold lodes of the East Fork Mining District, Trinity County, California: California Journal of Mines and Geology, California Mining Bureau. (Report 18): 18: 270-273.
Tucker, W.Burling (1923), Trinity County: California Journal of Mines and Geology, California Mining Bureau (Report 19).
Logan, Clarence August (1926), El Dorado, Shasta and Trinity Counties: California Journal of Mines and Geology, California Mining Bureau. (Report 22): 22(2): 1-67, 121-216, 397-452.
Laudermilk, Jerome Douglas & Alfred O. Woodford (1930), Soda-rich anthophyllite asbestos from Trinity County: American Mineralogist: 15: 259-262.
Averill, C.V. (1938), Gold dredging in Shasta, Siskiyou and Trinity counties: California Journal of Mines and Geology, California Division Mines (Report 34): 34(1): 96-126.
Bradley, W.W. (1940), Thirty-sixth report of the State Mineralogist: California Division Mines Report 36: 106.
Averill, Charles V. (1941), Mineral resources of Trinity and Humboldt Counties: California Journal of Mines and Geology, California Division Mines (Report 37): 37(1): 8-89.
O’Brien, J.C. (1943), Current notes on activity in the strategic minerals, Redding field district: California Division Mines Report 39: 84.
Anonymous (1950), Jade find in Trinity County: Mineral Notes & News No. 159 (Dec 50): 1-2.
Albers, John P. (1964), Geology of the French Gulch quadrangle, Shasta and Trinity Counties, California, USGS Bulletin 1141-J: J1-J70.
Lydon, Philip Andrew (1964), “Silicate slag” from Trinity County: California Division Mines & Geology, Mineral Information Service: 17: 96-101.
Albers, John P. (1965), Economic Geology of the French Gulch Quadrangle, Shasta and Trinity Counties, California: California Division Mines and Geology Special Report 85: 22.
O’Brien, J.C. (1965) Mines and mineral resources of Trinity County, California. Caifornia Division of Mines and Geology County Report 4: 125 pp.
Wells, F.G. and Hawkes, H.E. (1965) Chromite deposits of Shasta, Tehama, Trinity and Humboldt counties, California. California Division Mines and Geology Bulletin 134, part 1, chapter 3: 130-191.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 91, 224, 257, 299.
McAtee, J.L., House, R., and Eugster, H.P. (1968) Magadiite from Trinity County, California. American Mineralogist: 53: 2061-2069.
Gude, A.J. (1969) Hydrous sodium silicate minerals, Trinity County, California (abstract) Geological Society of America Abstract with Program, part 7: 86.
Sheppard, R.A. and Gude, A.J. (1969a) Rhodesite from Trinity County, California. American Mineralogist: 54: 251-255.
Clark, Wm. B. (1970a) Gold districts of California: California Division Mines & Geology Bulletin 193.
Snetsinger, K.G. (1971a) Platinum-metal nugget from Trinity County, California. American Mineralogist: 56(5-6): 1101-1105.
Gude, A.J. and Sheppard, R.A. (1972) Silhydrite, 3SiO2 •H2O, a new mineral from Trinity County, California. American Mineralogist: 57: 1053-1065.
Hotz, Preston Enslow, Thurber, H.K., Marks, L.Y., and Evans, R.K. (1972), Mineral resources of the Salmon-Trinity Alps Primitive Area, California: USGS Bulletin 1371-B, 267 p.
Longwill, Warren D. (1979) Mineral Resources of Yolla Bolly area, Trinity County, California.
Longwill, Warren D. (1981), Mineral Resources of the Big Butte-Shinbone (5145), East Fork (5226), Murphy Glade (5298), and Wilderness Contiguous (5137) Rare II Proposed Addition to the Yolla Bolly-Middle Eel Wilderness, Trinity, Tehema, and Mendicino Counties, California.
Peters, T.J. (1983) Mineral Investigation of the Weaver Bally Rare II Area (No. 5804), Trinity County, California: U.S. Bureau of Mines Open File Report MLA 93-83, 22p.
Blake, Jr., M.C., and Peters, T.J. (1984b), Mineral Resource Potential map of the Weaver Bally Roadless area, Trinity County, California: USGS Map NF-1657-A.