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

Comstock Mine Group

Past Producer in Pima county in Arizona, United States with commodities Lead, Copper, Silver, Gold
Map
XML
JSON
KML
B
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. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Production statistics
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10026779
MRDS ID M000218
Record type Site
Current site name Comstock Mine Group
Alternate or previous names Arizona Comstock Lode
Related records 10186367

Geographic coordinates

Geographic coordinates: -110.7704, 31.76096 (WGS84)
Elevation 1670
Relative position 7 MILES S OF HELVETIA.

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Helvetia(quadrangle 1:24,000 scale)

Fort Huachuca(quadrangle 1:100,000 scale)

Nogales(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Rillito(hydrologic unit)

Santa Cruz(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Coronado 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 Arizona Pima

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 019S 015E 25 NW Arizona

Commodities

Commodity Importance
Lead Primary
Copper Secondary
Silver Secondary
Gold Secondary

Materials information

Materials Type of material
Lead Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Quartz Latite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic)

Nearby scientific data

(1) -110.7704, 31.76096
ListMap

Economic information

Ore body information

  • General form IRREGULAR

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1928
Year of last production 1939

Mining district

District name Greaterville District

Land status

Ownership category National Forest
Area name Coronado National Forest

Production statistics

  • Year 1940
    Period 1890 - 1940
    Accuracy Estimate
    Description Cp_Grade: ^30 % Pb, 5 % Cu, 15 Oz. Ag/Ton, 0.3 Oz. Au/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 8g/mt
    Ore Silver Silver 424g/mt
    Ore Copper Copper 5wt-pct
    Ore Lead Lead 30wt-pct

Comments on the production information

  • PROSPECTED AND WORKED FROM LATE 1800'S TO 1940 .

Comments on the workings information

  • TUNNEL AND OPEN CUTS.

Comments on development

  • OPERATORS INCLUDED JONES AND CLYNE, W.C. HURLBUT, A.J. HARSHBBERGER

Reference information

Bibliographic references

  • Deposit

    KEITH, S.B., 1974, INDEX OF MINING PROPERTIES IN PIMA COUNTY, ARIZONA: ARIZONA BUREAU OF MINES BULLETIN 189, P. 120

  • Production

    ABM BULLETIN 189 , P. 120 .

General comments

Subject category Comment text
Deposit PARTIALLY OXIDIZED

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1979 Johnson, Kris H. (Creasey, S.C.) 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 Arizona resources

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