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  3. Mineral Resource Data System (MRDS)

Aho Mine

Past Producer in Sonoma county in California, United States with commodities Calcium, Iron, Manganese, Silica
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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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mineral rights holdings
  12. Land status
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10238682
MRDS ID M020238
MAS/MILS ID 0060970001
Record type Site
Current site name Aho Mine
Alternate or previous names Drum Mine
Related records 10033628

Geographic coordinates

Point of reference Trench
Geographic coordinates: -123.18078, 38.53548 (WGS84)
Elevation 375
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Sonoma(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Fort Ross(quadrangle 1:24,000 scale)

Point Arena(quadrangle 1:100,000 scale)

Santa Rosa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Gualala-Salmon(hydrologic unit)

Northern California Coastal(hydrologic accounting unit)

Klamath-Northern California Coastal(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Sonoma

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 008 N 012 W 16 NENESE California

Commodities

Commodity Importance
Calcium Tertiary
Iron Tertiary
Manganese Critical Tertiary
Silica Tertiary

Materials information

Materials Type of material
Calcite Unknown
Chert Unknown
Pyrite Unknown
Rhodochrosite Unknown
Rhodonite Unknown

Nearby scientific data

Trench (1) -123.18078, 38.53548
ListMap

Economic information

Ore body information

  • Strike N55E
    Dip 45N
    Thickness 15M
    Length 30M
    Width 20M
    Depth to top 1M
    Field Value
    MAS Matrix # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 LENTICULAR
    Type of Orebody #2 BRECCIA FILL
    Shape of Orebody #2 IRREGULAR
    Primary mode of Origin SEDIMENTATION
    Secondary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Secondary Ore Control BEDDING
    Degree of Wallrock Alter. NONE
    Strike And Dip N55E:45N
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 1
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830316
  • Area 5HA
    Field Value
    Total Surface Area (HA) 5
    Date of Last Modification 910418

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Both
Deposit size Medium
Significant No
Year of first production 1924

Mineral rights holdings

Type of mineral rights Fee Ownership

Land status

Ownership category Private

Ownership information

  • Type Unknown
    Owner Wells Fargo Bank,
    Interest 100
    Home office 555 California St.,San Francisco, Ca.
    Year 1975

Reference information

Bibliographic references

  • Deposit

    C.D.M.G. BULL. 152, PP. 280-2, PLATE 16,1950

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-1984 Burnett U.S. Bureau of Mines

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.