Iron Crown Mine

Past Producer in Custer county in Idaho, United States with commodities Gold, Silver

Geologic information

Identification information

Deposit ID 10070987
MRDS ID W014153
MAS/MILS ID 0160370367
Record type Site
Current site name Iron Crown Mine

Geographic coordinates

Geographic coordinates: -114.91593, 44.26298 (WGS84)
Elevation 2134
Relative position 3 MI N OF LOWER STANLEY
(click for info)

Geographic areas

Country State County
United States Idaho Custer

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 011N 013E 22 SE Idaho

Comments on the location information

  • Located Near the Head of Joes Gulch


Commodity Importance
Gold Primary
Silver Secondary

Materials information

Materials Type of material
Gold Ore
Silver Ore
Calcite Gangue
Hematite Gangue
Limonite Gangue
Pyrite Gangue
Quartz Gangue


  • (Local) Oxidation

Analytical data


Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Rhyolite Porphyry Dike
    Rock description Rhyolite Porphyry Dike
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -114.91593, 44.26298

Geologic structures

Type Description Terms
Regional Idaho Batholith
Local Cooling Fractures In Rhyolite Dike: 3 Sets Of Cooling Fractures

Ore body information

  • General form TABULAR

Controls for ore emplacement

  • Fractures In A 30 Ft Rhyolite Dike. The Dike Is N 8 Deg W And Dips 62 - 80 Deg E.

Economic information

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1905
Discoverer William Casto
Discovery method Ore-Mineral In Place
Year of first production 1905

Mining district

District name Stanley District

Land status

Ownership category National Forest
Area name Challis National Forest

Workings at the site

  • Type of workings Surface/Underground
    Length 126.19M

Comments on the workings information

  • Workings Consist of 3 Adits (1 Caved In At Portal) and 1 Pit Above the Upper Adit. An Abandoned 5 Stamp Mill Is Below the Adits At Creek Level.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS W014153
Idaho Geological Survey Idaho Mines and Prospects IMP CH_474
U.S. Bureau of Mines Minerals Availability System MAS 0160370367 data consolidated into this record

Bibliographic references

  • Deposit

    Choate, Raoul, 1962, Geology And Ore Deposits Of The Stanley Area: Idaho Bureau Of Mines And Geology Pamphlet 126, 120 P

  • Deposit

    U.S. Bureau Of Mines Open-File Report MLA 6-91, 1991, Table A-3, No. 370, P. 192.

  • Production

    Choate, Raoul, 1962, Idaho Bureau Of Mines And Geology, Pamphlet 126 P. 90

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1975 Yett, Jay R.; Miller, Pat U.S. Geological Survey
Reporter 04-NOV-1992 McHugh, Edward L. U.S. Bureau of Mines