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  3. Mineral Resource Data System (MRDS)

Drew Hill Prospect

Occurrence in Jefferson county in Colorado, United States with commodities Beryllium, 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. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10013734
MRDS ID D010192
Record type Site
Current site name Drew Hill Prospect
Alternate or previous names Drew Hill Pegmatites Nos. 1 and 2

Geographic coordinates

Geographic coordinates: -105.31475, 39.82777 (WGS84)
Elevation 2420
Location accuracy 2000(meters)
Relative position 6.9 MILES N 46 W FROM GOLDEN

Site location context

Political divisions (FIPS codes)

Jefferson(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ralston Buttes(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)

Geographic areas

Country State County
United States Colorado Jefferson

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 002S 071W 34 SE Colorado

Comments on the location information

  • ALONG DREW HILL ROAD ; INFO FROM LAND.ST :(1975)

Commodities

Commodity Importance
Beryllium Critical Primary
Feldspar Tertiary
Mica Tertiary

Materials information

Materials Type of material
Chrysoberyl Ore
Muscovite Ore
Tourmaline Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Rock unit name Granitic Pegmatite
    Rock description Granitic Pegmatite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Schist > Mica Schist
    Rock unit name Idaho Springs Formation-Mica Schist Unit
    Rock description Idaho Springs Formation-Mica Schist Unit

Nearby scientific data

(1) -105.31475, 39.82777
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Front Range Uplift, Denver Basin
Type of structure Local
Structure description Hurricane Hill Fault System, Unnamed Syncline

Ore body information

  • General form TABULAR
    Thickness 5.49M

Economic information about the deposit and operations

Development status Occurrence
Commodity type Both
Deposit size Small
Significant No

Mining district

District name Clear Creek Pegmatite Province

Land status

Ownership category Private

Comments on the workings information

  • SHALLOW 10-FT-DIAM PIT

Comments on development

  • SOME MINERAL SPECIMENS RECOVERED

Reference information

General comments

Subject category Comment text
Deposit HANLEY AND OTHERS' DESCRIPTION GIVES TREND AS N 70 E, 63 NW, BUT ALL PEGMATITES IN SEC. 34 HAVE NW TREND. NE-TRENDING PEGMATITES MAPPED IN SECS. 02, 03, 10, AND 11, T 35, R 71 W

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-83 Schwochow, Stephen D. Colorado Geological Survey

Beyond USGS

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

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.