Red Head Claim

Occurrence in Larimer county in Colorado, United States with commodities Uranium, Thorium, Beryllium, Niobium (Columbium), Tantalum, Mica, REE

Sections on this page

Identification information
Geographic coordinates
Site location context
Geographic areas
Public Land Survey System information
Commodities
Materials information
Host and associated rocks
Nearby scientific data
Geologic structures
Economic information about the deposit and operations
Mining district
Land status
Ownership information
Links to other databases
Bibliographic references
General comments
Reporter information

Geologic information

Identification information

Deposit ID	10013959
MRDS ID	D010536
Record type	Site
Current site name	Red Head Claim

Geographic coordinates

Geographic coordinates:	-105.46699, 40.88276 (WGS84)
Elevation	2298
Location accuracy	500(meters)
Relative position	36.4 MILES N46W FROM FORT COLLINS

Site location context

Political divisions (FIPS codes)

Larimer(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cherokee Park(quadrangle 1:24,000 scale)

Fort Collins(quadrangle 1:100,000 scale)

Greeley(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Cache La Poudre(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	Larimer

Public Land Survey System information

Meridian	Township	Range	Section	Fraction	State
6th Principal	011N	072W	33	NE	Colorado

Comments on the location information

NEAR UNNAMED TRIBUTARY OF BULL CREEK. ELEV AND LAT-LONG GIVEN ARE FOR CENTER NE SEC. 33. ; INFO FROM LAND.ST :1980

Commodities

Commodity	Importance
Uranium	Primary
Thorium	Primary
Beryllium Critical	Primary
Niobium (Columbium) Critical	Secondary
Tantalum Critical	Secondary
Mica	Secondary
REE Critical	Secondary

Materials information

Materials	Type of material
Beryl	Ore
Monazite	Ore
Columbite	Ore
Tantalite	Ore
Quartz	Unknown
Feldspar	Unknown
Mica	Unknown

Analytical data

Result	CHIP SAMPLES ASSAYED 2.5% EQUIV U, 1.82% EQUIV U, 3.66% THO2

Host and associated rocks

Host or associated

Associated

Rock type

Plutonic Rock > Pegmatite

Rock unit name

Pegmatite;Sherman Granite

Rock description

Pegmatite;Sherman Granite

Stratigraphic age (youngest)	Neoproterozoic
Stratigraphic age (youngest)	Neoproterozoic

Host or associated	Host
Rock type	Plutonic Rock > Granitoid > Granite
Rock unit name	Pegmatite;Sherman Granite
Rock description	Pegmatite;Sherman Granite

Nearby scientific data

(1)	-105.46699, 40.88276	ListMap

Economic information

Geologic structures

Type of structure	Regional
Structure description	Front Range Uplift, Sherman Batholith, Virginia Dale Ring-Dike Comp Lex
Type of structure	Local
Structure description	Unnamed Shear Zone

Economic information about the deposit and operations

Development status	Occurrence
Commodity type	Both
Deposit size	Small
Significant	No

Mining district

District name	Prairie Divide (St. Cloud) District

Land status

Ownership category	Private

Ownership information

Type Operator

Owner David Rietveld

Home office Fort Collins, Co.

First year 1951
Type Owner

Owner Union Pacific Railroad

First year 1951

Type	Operator
Owner	David Rietveld
Home office	Fort Collins, Co.
First year	1951

Type	Owner
Owner	Union Pacific Railroad
First year	1951

Comments on the production information

Nelson-Moore, 1978, p. 209 states, "Beryl crystals were mined on the property. The host is a Precambrian granite with pegmatite bodies. Beryl crystals 15 in. diameter are associated with beryl-gummite, columbite-tataliet, cryollite-monazite, quartz, feldspar, and mica. The radioactivaity is caused primarily by thorium and rare earth minerals."

Reference information

Links to other databases

Agency	Database name	Acronym	Record ID	Notes
USGS	Mineral Resources Data System	MRDS	D010536
USGS	Mineral Resources Data System	MRDS	D001825	=newMRDS 10009138, merged and deleted

Bibliographic references

Geology

EGGLER, D.H., 1968, VIRGINIA DALE PRECAMBRIAN RING-DIKE COMPLEX, CO LORADO-WYOMING: GSA BULL., V. 79, NO. 11, P. 1545-1564.
Deposit

NELSON-MOORE, J.L., AND OTHERS, 1978, RADIOACTIVE MINERAL OCCURRENC ES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P. 209.
Deposit

PARKER, R.L., 1963, NIOBIUM AND TANTALUM IN THE UNITED STATES: USGS MR-36, pamphlet p. 3, scale 1:3,168,000.

Comments on the references

Reference 3, Eggler, 1968, is for background geology only. There is no mention in the GSA paper about any mines.

General comments

Subject category	Comment text
Deposit	Nelson-Moore, 1978, lists 2 additional minerals: gummite and cyrtolite. Neither is in our database pick list. Could the latter be a misspelling of cryolite?

Reporter information

Type	Date	Name	Affiliation
Reporter	01-MAR-1983	Schwochow, Stephen D.	Colorado Geological Survey
Editor	28-JAN-2010	Wilson, Anna B.	U.S. Geological Survey
Reporter	01-MAR-1975	Parker, Raymond L.	U.S. 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.