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

Yak Tunnel

Past Producer in Lake county in Colorado, United States with commodities Zinc, Silver, Lead, Gold, Copper, Manganese
Map
XML
JSON
KML
C
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Nearby scientific data
  7. Economic information about the deposit and operations
  8. Mining district
  9. Land status
  10. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10264354
MAS/MILS ID 0080650411
Record type Site
Current site name Yak Tunnel
Alternate or previous names Leadville Deep Mines

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -106.27031, 39.23579 (WGS84)
Elevation 3292
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Lake(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Leadville South(quadrangle 1:24,000 scale)

Leadville(quadrangle 1:100,000 scale)

Leadville(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)

Geographic areas

Country State County
United States Colorado Lake

Comments on the location information

  • An access-drainage-haulage tunnel, the portal is in California Gulch, just over 1 mile SE of Leadville, in the NW/4 SW/4 sec 30, T 9 S, R 79 W.

Commodities

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

Nearby scientific data

Main Entrance (1) -106.27031, 39.23579
ListMap

Economic information

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Significant No

Mining district

District name Leadville District

Land status

Ownership category Private

Comments on the production information

  • A report indicates that lead sulfide and carbonate ores and zinc sulfide ore was being produced from several properties adjacent to the tunnel. (Sunshine files, 1926?)

Comments on the reserve resource information

  • A report indicates that areas below the Yak tunnel level, on the north end of Carbonate and Iron Hills, called the Leadville Deep Mines, have developed ore: 100,000 tons grading 3.5 oz/ton silver, 4.5% lead, and 25% zinc; and 60,000 tons averaging 8 oz/ton silver, 7% lead, and 18% zinc. (Sunshine files, 1926?)

Comments on development

  • A report urges development of ore adjacent to Yak Tunnel (and elsewhere) to feed Arkansas Valley plant. (Sunshine files, 1926?)

Reference information

Bibliographic references

  • Development

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

General comments

Subject category Comment text
Deposit CERCLA (SUPERFUND) SITE. PROPERTY INCLUDED IN THE CALIFORNIA GULCH MINING WASTE SITE PLACED ON THE NATIONAL PRIORITIES LIST (NPL) IN 1983. ENVIRONMENTAL HAZARDS INCLUDE: 1) ACID MINE DRAINAGE CONTAMINATED WITH HEAVY METALS, AND 2) MINE DUMPS AND MILL TAILINGS CONTAINING HEAVY METALS. DOI ALLEGED TO BE A PRP.

Reporter information

Type Date Name Affiliation Comment
Reporter 13-FEB-1978 Intermountain Field Operations Center (IFOC) U.S. Bureau of Mines
Updater 16-FEB-2006 Beach, Richard A. Colorado Geological Survey

Beyond USGS

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

External references

Maps centered on this site

Authoritative Colorado resources

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