Homestake Mine

Past Producer in Chaffee county in Colorado, United States with commodities Feldspar, Mica, Beryllium, REE
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. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10101833
MRDS ID D010135
Record type Site
Current site name Homestake Mine
Related records 10117607

Geographic coordinates

Geographic coordinates: -105.9567, 38.62694 (WGS84)
Elevation 2701
Relative position 6.8 MILES N 17 E OF SALIDA POST OFFICE

Site location context

Political divisions (FIPS codes)

Chaffee(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cameron Mountain(quadrangle 1:24,000 scale)

Pikes Peak(quadrangle 1:100,000 scale)

Pueblo(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Arkansas Headwaters(hydrologic unit)

Upper Arkansas(hydrologic accounting unit)

Upper Arkansas(hydrologic subregion)

Arkansas-White-Red(hydrologic region)

Federal lands

Pike and San Isabel National Forests(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Colorado Chaffee

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 051N 009E 34 S2 OF NW OF SE Colorado

Comments on the location information

  • IN RAILROAD GULCH A FEW HUNDRED YARDS NE OF TURRET ROAD, ALONG SHARP RIDGE ; INFO FROM LAND.ST :(1976)

Commodities

Commodity Importance
Feldspar Primary
Mica Secondary
Beryllium Critical Secondary
REE Critical Secondary

Materials information

Materials Type of material
Albite Ore
Apatite Ore
Beryl Ore
Muscovite Ore
Quartz Gangue

Analytical data

Result MILLED ORE YIELDS 40% ALBITE

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Migmatitic Gneiss
    Rock description Migmatitic Gneiss
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss

Economic information

Geologic structures

Type of structure Regional
Structure description Southern Mosquito Range, Thirtynine Mile Volcanic Field, Arkansas Valley Graben

Ore body information

  • General form FUNNEL-SHAPED PLUG
    Plunge 10-15
    Plunge direction N 71 E
    Thickness 182.88M
    Length 152.4M
    Width 30.48M
    Depth to top 0M

Controls for ore emplacement

  • Pegmatite

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No
Discovery year 1944
Year of first production 1950
Year of last production 1963

Mining district

District name Turret District

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner M And S, Inc.
    Home office Denver, Co.
    First year 1944

Workings at the site

  • Type of workings Unknown
    Area 1.577HA
    Length 182.88M
    Overall depth 91.44M
    Overall length 182.88M
    Overall width 91.44M

Comments on the workings information

  • LARGE OPEN PIT; BY MARCH 1958, 11 LEVELS OPEN

Comments on development

  • INACTIVE IN 1944, BUT OPERATED "ON A LARGE SCALE" BETWEEN 1950 AND 1963 FOR SODA SPAR (VAN ALSTINE, R.E., 1969, P. 45)

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit ZONED: CORE IS ALBITE PEGMATITE, WALL IS QUARTZ-ALBITE-MUSCOVITE-MICROCLINE PEGMATITE
Deposit FOR SEVERAL YEARS THIS WAS THE STATE'S LARGEST FELDSPAR PRODUCER (VAN ALSTINE, R.E., 1969, P. 45) ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1983 Collins, Donna B. Colorado Geological Survey

Beyond USGS

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

Authoritative Colorado resources

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