Silver State Mill

Past Producer in Park county in Colorado, United States with commodities Gold, Silver, Lead, Zinc, Copper
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. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Mining district
  10. Mineral rights holdings
  11. Land status
  12. Ownership information
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10215033
MAS/MILS ID 0080930283
Record type Site
Current site name Silver State Mill
Alternate or previous names Monte Cristo Mill

Comments on the site names

  • Name changed in 1980 to Silver State Mining Co.

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -106.06338, 39.2961 (WGS84)
Elevation 3353

Site location context

Political divisions (FIPS codes)

Park(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Alma(quadrangle 1:24,000 scale)

Leadville(quadrangle 1:100,000 scale)

Leadville(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

South Platte Headwaters(hydrologic unit)

South Platte(hydrologic accounting unit)

South Platte(hydrologic subregion)

Missouri(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 Park

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 009 S 078 W 08 NW Colorado

Comments on the location information

  • The mill is adjacent to CO Highway 9, about 1 mile north of Alma in W/2 sec 1, T 9 S, R 78 W.

Commodities

Commodity Importance
Gold Primary
Silver Primary
Lead Primary
Zinc Critical Secondary
Copper Secondary

Nearby scientific data

Main Entrance (1) -106.06338, 39.2961

Economic information

Economic information about the deposit and operations

Operation type Processing Plant
Development status Past Producer
Commodity type Metallic
Significant No
Milling method Flotation

Mining district

District name Alma District

Mineral rights holdings

Type of mineral rights Patented

Land status

Ownership category Private

Ownership information

  • Type Unknown
    Owner Silver State Mining Co.
    ID 503486
    Home office Colorado
    Year 1979

Comments on development

  • Monte Cristo Mining and Milling Co. built the mill in 1977 and processed ore and dump material from several mines in the Alma area until 1982, producing gold, silver, and base metal concentrates.
  • The mill has been dismantled.

Reference information

Bibliographic references

  • Deposit

    MSHA ADDITION 4-80

  • Development

    Colorado Division of Mines, 1976-1980, A summary of mineral industry activities in Colorado, (year): Denver, annual report.

  • Development

    Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.

Reporter information

Type Date Name Affiliation Comment
Reporter 28-MAY-1993 Rlw U.S. Bureau of Mines
Updater 27-JAN-2006 Beach, Richard A. Colorado Geological Survey

Beyond USGS

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

Current status (per MSHA)

StatusAbandoned since 07/14/1989
MSHA mine ID0503486
Mine name (MSHA)Alma Project Mill
Current operatorLondon Mine Venture
Current controller (parent)Cobb Resources Corp & Boulder Gold Inc
Mine typeFacility (Metal / non-metal)

MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.

Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.

Authoritative Colorado resources

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