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

Bachus Group

Past Producer in Gilpin county in Colorado, United States with commodities Gold, Lead
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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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Workings at the site
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10166921
MAS/MILS ID 0080470027
Record type Site
Current site name Bachus Group

Geographic coordinates

Geographic coordinates: -105.61029, 39.78609 (WGS84)

Site location context

Political divisions (FIPS codes)

Clear Creek(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Central City(quadrangle 1:24,000 scale)

Denver West(quadrangle 1:100,000 scale)

Denver(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Clear(hydrologic unit)

South Platte(hydrologic accounting unit)

South Platte(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Arapaho and Roosevelt 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 Gilpin

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 003 S 073 W 18 C N2SW Colorado

Commodities

Commodity Importance
Gold Tertiary
Lead Tertiary

Materials information

Materials Type of material
Balas Ruby Unknown
Marcasite Unknown
Silver Unknown

Nearby scientific data

(1) -105.61029, 39.78609
ListMap

Economic information

Ore body information

  • Strike N35W
    Dip 45E
    Thickness 2.3M
    Length 1600M
    Width 200M
    Depth to top 0M
    Field Value
    Type of Orebody #1 SHEAR ZONE
    Shape of Orebody #1 IRREGULAR
    Type of Orebody #2 FISSURE VEIN
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Secondary Ore Control CONTACT ZONE
    Degree of Wallrock Alter. SLIGHT
    Type of Wallrock Alter. #1 UNKNOWN
    Strike And Dip N35W:45E
    Avg. Thick. Unconsol. Mat. 0
    Date of Last Modification 780213

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No

Workings at the site

  • Type of workings Underground
    Length 8000M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method TIMBER WITH SUBSEQUENT FILL 10-45
    Swell Factor .35
    Percent Waste Rock 20
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. COMPLETELY INCOMPETENT
    Mine Support Chars. CAN'T SUPPORT FILL OR CAVE
    Avg. Length of Adits (m) 3000
    1st Condition of Workings UNKNOWN

Reference information

Bibliographic references

  • Deposit

    REF: MAS FILE

Reporter information

Type Date Name Affiliation Comment
Reporter 25-JUN-1985 Intermountain Field Operations Center (IFOC) U.S. Bureau of Mines

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.