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  3. Mineral Resource Data System (MRDS)

Maryland Lode

Past Producer in Custer county in South Dakota, United States with commodities Feldspar, Mica
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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. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Mining district
  12. Land status
  13. Ownership information
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10055660
MRDS ID SD02269
Record type Site
Current site name Maryland Lode
Alternate or previous names Olds Lode

Geographic coordinates

Geographic coordinates: -103.46389, 43.8269 (WGS84)
Elevation 1585
Relative position 10 MILES NORTHEAST OF CUSTER, SOUTH DAKOTA

Site location context

Political divisions (FIPS codes)

Custer(county)

South Dakota(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Iron Mountain(quadrangle 1:24,000 scale)

Mount Rushmore(quadrangle 1:100,000 scale)

Hot Springs(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Cheyenne-Spring(hydrologic unit)

Cheyenne(hydrologic accounting unit)

Cheyenne(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Black Hills National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Black Elk Wilderness(Wilderness)

Wilderness FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States South Dakota Custer

Public Land Survey System information

Meridian Township Range Section Fraction State
Black Hills 002S 005E 36 South Dakota

Comments on the location information

  • SE 1/4

Commodities

Commodity Importance
Feldspar Primary
Mica Primary

Materials information

Materials Type of material
Feldspar Ore
Mica Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Rock unit name Pegmatite
    Rock description Pegmatite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Harney Peak Granite
    Rock description Harney Peak Granite

Nearby scientific data

(1) -103.46389, 43.8269
ListMap

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Deposit size Small
Significant No

Mining district

District name Unorganized District

Land status

Ownership category National Forest
Area name Black Hills National Forest

Ownership information

  • Type Owner
    Owner James Shea

Comments on the production information

  • SOME MICA IS REPORTED TO HAVE BEEN SHIPPED BEFORE 1938.

Workings at the site

  • Type of workings Surface
    Overall length 30.48M

Comments on the workings information

  • 100 FOOT TRENCH AND A 30-, 25- AND 50- FOOT CUTS.

Comments on development

  • ECON.COM: THE TWO DIKES ON THE SOUTH END OF THE PROPERTY ARE TOO FINE-GRAINED TO PERMIT ECONOMICAL HAND SORTING OF THE MINERALS.

Reference information

Bibliographic references

  • Deposit

    USBM INFO CIRC 7707, P. 77

  • Production

    U.S. BUREAU OF MINES, 1955, BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART 2, BUREAU OF MINES INFORMATION CIRCULAR 7707

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1980 Barari, Rachel A. U.S. 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