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Niedra Group

Past Producer in Trinity county in California, United States with commodity Gold
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Land status
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10035864
MRDS ID M023797
Record type Site
Current site name Niedra Group
Related records 10117892

Geographic coordinates

Geographic coordinates: -122.89389, 41.10456 (WGS84)
Elevation 1433
Relative position 2.2 MI. NW OF SUMMIT OF BATTLE MTN.

Site location context

Political divisions (FIPS codes)

Trinity(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Caribou Lake(quadrangle 1:24,000 scale)

Mount Shasta(quadrangle 1:100,000 scale)

Weed(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Trinity(hydrologic unit)

Klamath(hydrologic accounting unit)

Klamath-Northern California Coastal(hydrologic subregion)

California(hydrologic region)

Federal lands

Shasta-Trinity National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Trinity Alps Wilderness(Wilderness)

Wilderness FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States California Trinity

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 038N 009W 33 California

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Metamorphic Rock > Schist > Mica Schist

Nearby scientific data

(1) -122.89389, 41.10456
ListMap

Economic information

Comments on the geologic information

  • DIORITE DIKES INTRUDE ABRAMS MICA SCHIST AND SERPENTINE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Land status

Ownership category National Forest

Comments on the production information

  • NO PRODUCTION RECORD FOUND. SOME GOLD WAS RECOVERED IN RIFFLE-SLUICES

Comments on the workings information

  • OVERBURDEN WAS HEAVY AND SEVERAL CUTS WASHED THROUGH IT BY GROUND SLUICING. THEY WERE 100-200 FT. LONG BY 40 FT. WIDE AND 20 FT. DEEP. WATER WAS TAKEN FROM TRIBUTARY OF UNION CREEK. THROUGH 600 FT. DITCH AND 300 FT. DITCH.

Reference information

Bibliographic references

  • Deposit

    AVERILL, C.V., 1941, MINERAL RESOURCES OF TRINITY COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 37, NO. 1, P. 51

General comments

Subject category Comment text
Deposit GOLD OCCURS NEAR INTRUSIVE CONTACTS
Deposit 12 UNPATENTED CLAIMS ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1980 Nelson, Scott C. (Albers, John, P.) U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative California resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.