Gunnison Mine

Past Producer in Gunnison county in Colorado, United States with commodities Gold, Silver, Copper, Lead, Tellurium, Selenium

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
Controls for ore emplacement
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	10014413
MRDS ID	D011166
Record type	Site
Current site name	Gunnison Mine
Alternate or previous names	Patented Claim: Gunnison, Ms 11846

Geographic coordinates

Geographic coordinates:	-107.10285, 38.35222 (WGS84)
Elevation	2697
Relative position	16.0 MILES S 36 W FROM GUNNISON

Site location context

Political divisions (FIPS codes)

Gunnison(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Powderhorn(quadrangle 1:24,000 scale)

Montrose(quadrangle 1:100,000 scale)

Montrose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Gunnison(hydrologic unit)

Gunnison(hydrologic accounting unit)

Gunnison(hydrologic subregion)

Upper Colorado(hydrologic region)

Geographic areas

Country	State	County
United States	Colorado	Gunnison

Public Land Survey System information

Meridian	Township	Range	Section	Fraction	State
New Mexico	047N	002W	04	N2 OF NW OF SW OF SE	Colorado

Comments on the location information

ON SOUTH SIDE OF WOLF CREEK 0.2 MILE WEST OF COLORADO RTE 149. ; INFO FROM LAND.ST :1976

Commodities

Commodity	Importance
Gold	Primary
Silver	Primary
Copper	Primary
Lead	Tertiary
Tellurium Critical	Tertiary
Selenium	Tertiary

Materials information

Materials	Type of material
Chalcopyrite	Ore
Galena	Ore
Pyrite	Ore
Chlorite	Gangue
Garnet	Gangue
Magnetite	Gangue
Quartz	Gangue

Host and associated rocks

Host or associated

Associated

Rock type

Plutonic Rock > Mafic Intrusive Rock > Gabbro

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

Host or associated Associated

Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt

Host or associated	Associated
Rock type	Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt

Host or associated	Host
Rock type	Metamorphic Rock > Metasedimentary Rock > Quartzite
Rock unit name	Dubois Greenstone--Quartzite;Dubois Greenstone--Hornblende Schist And Amphibolite;Quartzofeldspathic And Quartz-Sericite Schist
Rock description	Dubois Greenstone--Quartzite;Dubois Greenstone--Hornblende Schist And Amphibolite;Quartzofeldspathic And Quartz-Sericite Schist

Nearby scientific data

(1)	-107.10285, 38.35222	ListMap

Economic information

Geologic structures

Type of structure	Regional
Structure description	Gunnison Uplift, San Juan Volcanic Field
Type of structure	Local
Structure description	Gunnison Gold Belt, Iron Hill Alkalic Complex, Tolvar Peak Stock

Controls for ore emplacement

Folded Metamorphosed Chert Layer Near Metasedimentary-Metavolcanic Contact

Economic information about the deposit and operations

Development status	Past Producer
Commodity type	Metallic
Deposit size	Small
Significant	No

Mining district

District name	Goose Creek District

Land status

Ownership category	BLM Administrative Area

Ownership information

Type Owner-Operator

Owner Fred H. Brown

Home office Gunnison, Co.

First year 1938

Type	Owner-Operator
Owner	Fred H. Brown
Home office	Gunnison, Co.
First year	1938

Comments on the workings information

CDM REPORTS DESCRIBE WORKINGS AS 25-FT-DEEP SHAFT; 20-FT-DEEP SHAFT WITH 10-FT DRIFT DRIVEN EASTWARD FROM BOTTOM; 200-FT-DEEP SHAFT WITH 20-FT DRIFT DRIVEN WESTWARD FROM BOTTOM, 38-FT CROSSCUT DRIVEN NORTHWARD AT DEPTH OF 140 FT IN SHAFT, AND 37-FT CROSSCUT DRIVEN NORTHWARD AT DEPTH OF 50 FT IN SHAFT AND CONNECTING TO 50-FT-DEEP SHAFT SUNK 37 FT NORTH OF 200-FT SHAFT; OPEN CUTS.

Reference information

Links to other databases

Agency	Database name	Acronym	Record ID	Notes
USGS	Mineral Resources Data System	MRDS	D011166

Bibliographic references

Deposit

HEDLUND, D.C., AND OLSON, J.C., 1975, GEOLOGIC MAP OF THE POWDERHORN QUADRANGLE, GUNNISON AND SAGUACHE COUNTIES, COLORADO: USGS MAP GQ-1178.
Deposit

NELSON, C.J., AND RIESMEYER, W.D., 1983, GEOLOGY OF THE ANACONDA-GUNNISON MINE AREA, GUNNISON COUNTY, COLORADO, IN HANDFIELD, R.C., ED., GUNNISON GOLD BELT AND POWDERHORN CARBONATITE FIELD TRIP GUIDEBOOK: DREGS, P. 8-18.
Deposit

DROBECK, P.A., 1981, PROTEROZOIC SYNGENETIC MASSIVE SULFIDE DEPOSITS IN THE GUNNISON GOLD BELT, COLORADO, IN EPIS, R.C., AND CALLENDER, J.F., EDS., WESTERN SLOPE COLORADO: NEW MEXICO GEOL. SOC. 32D FIELD CONF. GUIDEBOOK, P. 279-286.
Deposit

SHERIDAN, D.M., AND OTHERS, 1981, PRECAMBRIAN SULFIDE DEPOSITS IN THE GUNNISON REGION, COLORADO, IN EPIS, R.C., AND CALLENDER, J.F., EDS., WESTERN SLOPE COLORADO: NEW MEXICO GEOL. SOC. 32D FIELD CONF. GUIDEBOOK, P. 273-277.
Deposit

BURBANK, W.S., 1951, AEC PRELIM. RECON. REPT. 1930.
Deposit

BLM MINERAL SURVEY MS 11846
Deposit

COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.

General comments

Subject category	Comment text
Deposit	NELSON AND RIESMEYER (1983) DESCRIBE DEPOSIT AS AU-BEARING PYRITE-ARSENOPYRITE-MAGNETITE-BEARING CHERT AND AU-BEARING GARNET-CHLORITE-HORNBLENDE-MAGNETITE SCHIST. DEPOSIT IS THOUGHT TO REPRESENT FERRUGINOUS CHEMICAL/CLASTIC SEDIMENT FORMED IN SHALLOW BASIN DEVELOPED IN BASALTIC ROCKS. CHERT LAYER TRENDS ENE-WSW AND LIES ON NORTH LIMB OF CHAMPION SYNFORM, WHICH IS CUT AND DISPLACED BY THREE NW-TRENDING FAULTS. DROBECK (1981) DESCRIBES CHERT LAYER AS LYING NEAR CONTACT BETWEEN METASEDIMENTS ON NORTH AND METAVOLCANICS ON SOUTH AND ASSOCIATED WITH A THINNED PORTION OF KOMATIITE FLOW. NO MASSIVE SULFIDE WAS FOUND IN DEEPLY WEATHERED GARNET- (ALMANDITE-) BEARING BIOTITE SILTSTONE ON STRATIGRAPHIC FOOTWALL. DISSEMINATED PYRITE AND CHALCOPYRITE WERE FOUND IN REMOBILIZED QUARTZ VEINS WITHIN CHERT LAYER. CHERT AND REMOBILIZED QUARTZ CONTAIN ANOMALOUS AU, SE, AND TE.

Subject category

Comment text

Deposit

NELSON AND RIESMEYER (1983) DESCRIBE DEPOSIT AS AU-BEARING PYRITE-ARSENOPYRITE-MAGNETITE-BEARING CHERT AND AU-BEARING GARNET-CHLORITE-HORNBLENDE-MAGNETITE SCHIST. DEPOSIT IS THOUGHT TO REPRESENT FERRUGINOUS CHEMICAL/CLASTIC SEDIMENT FORMED IN SHALLOW BASIN DEVELOPED IN BASALTIC ROCKS. CHERT LAYER TRENDS ENE-WSW AND LIES ON NORTH LIMB OF CHAMPION SYNFORM, WHICH IS CUT AND DISPLACED BY THREE NW-TRENDING FAULTS. DROBECK (1981) DESCRIBES CHERT LAYER AS LYING NEAR CONTACT BETWEEN METASEDIMENTS ON NORTH AND METAVOLCANICS ON SOUTH AND ASSOCIATED WITH A THINNED PORTION OF KOMATIITE FLOW. NO MASSIVE SULFIDE WAS FOUND IN DEEPLY WEATHERED GARNET- (ALMANDITE-) BEARING BIOTITE SILTSTONE ON STRATIGRAPHIC FOOTWALL. DISSEMINATED PYRITE AND CHALCOPYRITE WERE FOUND IN REMOBILIZED QUARTZ VEINS WITHIN CHERT LAYER. CHERT AND REMOBILIZED QUARTZ CONTAIN ANOMALOUS AU, SE, AND TE.

Reporter information

Type	Date	Name	Affiliation	Comment
Reporter	01-JAN-1984	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.