Relief Hill

Producer in Nevada county in California, United States with commodities Gold, Platinum, Chromium, Titanium, Metal
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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10038014
MRDS ID M045264
Record type Site
Current site name Relief Hill
Alternate or previous names Relief

Geographic coordinates

Geographic coordinates: -120.86186, 39.36128 (WGS84)
Elevation 1195
Location accuracy 1000(meters)
Relative position 3 MI EAST OF NORTH BLOOMFIELD, 10 MI NORTHEAST OF NEVADA CITY, Estimate, Probably Within Section

Site location context

Political divisions (FIPS codes)

Nevada(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Washington(quadrangle 1:24,000 scale)

Truckee(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Yuba(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

Tahoe National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States California Nevada

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 017N 010E 04,09 W2 (04); NE4 (09) California

Comments on the location information

  • IN TAHOE NATIONAL FOREST. LOCATION GIVEN IS FOR EASTERN CANYON AT TOWN OF RELIEF. UTM GRID IS NOT SHOWN ON MAP; THUS, UTM IS APPROXIMATE.

Commodities

Commodity Importance
Gold Primary
Platinum Critical Secondary
Chromium Critical Tertiary
Titanium, Metal Critical Tertiary

Materials information

Materials Type of material
Chromite Ore
Gold Ore
Ilmenite Ore
Magnetite Ore

Analytical data

Result CONCENTRATES YIELDED $1,011.31/TON AU (0.22 OZ/TON, 7.5 PPM), $106.50/TON PT (0.016 OZ/TON, 550 PPB) AT 9 LB CONCENTRATE/TON GRAVEL

Mineral occurrence model information

Model code 119
USGS model code 39a
Deposit model name Placer Au-PGE
Mark3 model number 54

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel
    Stratigraphic age (youngest) Pliocene

Nearby scientific data

(1) -120.86186, 39.36128

Economic information

Ore body information

  • General form STREAM SEDIMENT DEPOSITS
    Thickness 60.96M
    Depth to top 0M

Controls for ore emplacement

  • Stream Hydraulics

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1851

Mining district

District name North Bloomfield District

Land status

Ownership category National Forest

Ownership information

  • Type Operator
    Owner Western Gold Inc.
    First year 1941

Comments on the production information

  • PGM PRODUCTION NOT VERIFIED

Comments on the reserve resource information

  • RESOURCE ESTIMATES RAN 5-15 MILLION YD REMAINING

Comments on the workings information

  • HYDRAULIC, DRIFTING, OPEN PIT

Comments on development

  • HYDRAULIC OPERATIONS WERE CARRIED ON IN SPRING OF 1949

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit RECORD M011719 HAS BEEN MERGED AND DELETED.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-74 Blair, Will N. U.S. Geological Survey
Updater 01-FEB-89 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

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

Authoritative California resources

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