Fortuna Mine

Producer in Yavapai county in Arizona, United States with commodities Gold, Silver
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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Ownership information
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10048238
MRDS ID M800343
Record type Site
Current site name Fortuna Mine

Geographic coordinates

Geographic coordinates: -112.40352, 34.17312 (WGS84)
Elevation 1713
Relative position 2.7 MILES SE OF THOMPSON BUTTE

Site location context

Political divisions (FIPS codes)

Yavapai(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Minnehaha(quadrangle 1:24,000 scale)

Bradshaw Mountains(quadrangle 1:100,000 scale)

Prescott(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Agua Fria(hydrologic unit)

Lower Gila-Agua Fria(hydrologic accounting unit)

Lower Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Prescott 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 Yavapai

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 010N 001W 30,31 S2 OF SW OF SE (30); N2 OF NW OF NE (31) Arizona

Comments on the location information

  • UTM TAKEN TO SHAFT SHOWN ON MAP, THE CLAIM LIES IN SECTIONS 30 AND 31.

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Materials information

Materials Type of material
Gold Ore
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Minor

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Brady Butte Granodiorite
    Rock description Brady Butte Granodiorite
    Stratigraphic age (youngest) Paleoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -112.40352, 34.17312

Economic information

Geologic structures

Type of structure Regional
Structure description Foliation In Granodiorite Trends N10e To N25e
Type of structure Local
Structure description Veins Crosscut Or Parallel Foliation

Ore body information

  • General form TABULAR
    Strike N20E APPOROX
    Dip STEEP

Controls for ore emplacement

  • Faulting, Shearing

Comments on the geologic information

  • DEPOSIT IS QUARTZ VEIN WHICH CUTS PROTEROZOIC GRANODIORITE

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1937
Year of last production 1941

Mining district

District name Minnehaha District

Ownership information

  • Type Operator
    Owner Larry O'Brien
    First year 1941

Comments on development

  • 1 PATENTED CLAIM, MS 2775, IS SHOWN ON BLM PLATS AS MS 2275.

Reference information

Bibliographic references

  • Deposit

    USBM-ABGMT FILE DATA

  • Deposit

    BLM DISTRICT SHEET #212 SW 1/4

  • Deposit

    MILS LOCATION DATA

General comments

Subject category Comment text
Deposit CLAIM TRENDS N20E; ASSUMED THAT VEIN STRIKES PARALLEL TO CLAIM

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1981 Laraba, Peter (Dewitt, Ed) Arizona Bureau of Geology and Mineral Technology

Beyond USGS

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

Authoritative Arizona resources

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