1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Hamilton Mine

Past Producer in San Luis Obispo county in California, United States with commodity Mercury
Map
XML
JSON
KML
C
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. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Land status
  10. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10238064
MRDS ID M055785
MAS/MILS ID 0060790047
Record type Site
Current site name Hamilton Mine
Related records 10040901

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -121.05069, 35.64166 (WGS84)
Elevation 317
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

San Luis Obispo(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Pebblestone Shut-in(quadrangle 1:24,000 scale)

Cambria(quadrangle 1:100,000 scale)

San Luis Obispo(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Central Coastal(hydrologic unit)

Central California Coastal(hydrologic accounting unit)

Central California Coastal(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California San Luis Obispo

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 026 S 009 E 30 W2W2SW California

Commodities

Commodity Importance
Mercury Primary

Nearby scientific data

Main Entrance (1) -121.05069, 35.64166
ListMap

Economic information

Economic information about the deposit and operations

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

Land status

Ownership category Unknown

Reference information

Bibliographic references

  • Deposit

    CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD, CENTRAL

  • Deposit

    COAST REGION. SURFACE WATER DEGRADATION BY INACTIVE

  • Deposit

    METAL MINES IN NORTHWEST SAN LUIS OBISPO COUNTY, CA,

  • Deposit

    DECEMBER 1993 (P. 11-12).

  • Deposit

    U.S. GEOLOGICAL SURVEY BULLETIN 922-R, 1941, P. 548-549, 571-572.

  • Deposit

    U.S. BUREAU OF MINES IC 8252, 1965, P. 195.

General comments

Subject category Comment text
Environmental Factors SEDIMENT COLLECTED IN THE SAN SIMEON CREEK ABOVE THE CAMBRIA MINE TRIBUTARY CONTAINED ELEVATED ANTIMONY, ARSENIC, AND LEAD, INDICATING AN UPSTREAM SOURCE (POSSIBLY THE HAMILTON MINE). MEAN AND MAXIMUM CONCENTRATIONS DETECTED IN WATER SAMPLES FROM THE ENTIRE SAN SIMEON CREEK WATERSHED IN 1992 WERE COMPARED TO 1993 STANDARDS. MAXIMUM CONCENTRATIONS OF TOTAL CHROMIUM, TOTAL MERCURY, TOTAL NICKEL, TURBIDITY, ELECTRICAL CONDUCTANCE, SODIUM, CHLORIDES, AND BORON EXCEEDED A VARIETY OF HUMAN HEALTH, FISH AND WILDLIFE, AGRICULTURAL, PLANT, AND NUISANCE STANDARDS.

Reporter information

Type Date Name Affiliation Comment
Reporter 23-NOV-1994 Ridenour, James U.S. Bureau of Mines

Beyond USGS

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

External references

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.