Unnamed Prospects

Occurrence in Saguache county in Colorado, United States with commodities Gold, Silver, Lead
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. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Controls for ore emplacement
  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 10012554
MRDS ID D008230
Record type Site
Current site name Unnamed Prospects
Related records 10191268, 10143271

Geographic coordinates

Geographic coordinates: -106.1956, 38.23418 (WGS84)
Elevation 2963
Relative position 10.5 MILES N17W FROM SAGUACHE

Site location context

Political divisions (FIPS codes)

Saguache(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Klondike Mine(quadrangle 1:24,000 scale)

Saguache(quadrangle 1:100,000 scale)

Montrose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Saguache(hydrologic unit)

Rio Grande Headwaters(hydrologic accounting unit)

Rio Grande Headwaters(hydrologic subregion)

Rio Grande(hydrologic region)

Federal lands

Rio Grande National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Colorado Saguache

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 046N 007E 15,21,22 Colorado

Comments on the location information

  • MINE OR CLAIM LIES AT HEAD OF FORD CR. (SPOOK CITY) 1 TO 1.5 MILES NE OF BONITA HILL. LAT-LONG IS COMMON SECTION CORNER ; INFO FROM LAND.ST :(1976)

Commodities

Commodity Importance
Gold Primary
Silver Primary
Lead Primary

Alteration

  • (Local) Early Barren Stage Of Alteration By Fumarolic Or Acid-Hot Spring Activity Resulted In Intense Silicification, Wallrock Replacement By Jasper And Alteration Products Hematite, Diaspore, Alunite, Barite, Zunyite, Rutile, And Kaolin Minerals. Later Mineralizing Stage By Alkaline Or Neutral Solutions Deposited Ore And Gangue And Caused Micaceous Alteration (Sericite And Chlorite) And Calcite, Quartz, And Pyrite.

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Rawley Andesite
    Rock description Rawley Andesite
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Rawley Andesite
    Rock description Rawley Andesite

Nearby scientific data

(1) Intra-ash flow andesitic lavas

Economic information

Geologic structures

Type of structure Regional
Structure description Sawatch Range, San Juan Volcanic Field, Rio Grande Rift
Type of structure Local
Structure description Bonanza Caldera

Controls for ore emplacement

  • See Comments

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mining district

District name Bonanza (Kerber Creek)

Land status

Ownership category National Forest

Comments on the workings information

  • SURFACE PROSPECT PITS IN NE OF NE OF NE SEC. 21; TUNNEL HEADING SW FOR UNKNOWN DISTANCE IN SW OF SW OF SW SEC. 15; TWO SHAFTS OF UNKNOWN DEPTH IN E/2 OF SE OF SW SEC. 15; ONE SHAFT OF UNKNOWN DEPTH IN SE OF NE OF SE SEC. 21.

Reference information

Bibliographic references

  • Deposit

    PATTON, H.B., 1916, GEOLOGY AND ORE DEPOSITS OF THE BONANZA DISTRICT, SAGUACHE COUNTY, COLORADO; COLORADO GEOLOGICAL SURVEY BULL. 9, 136 P.

  • Deposit

    BURBANK, W.S., 1932, GEOLOGY AND ORE DEPOSITS OF THE BONANZA MINING DISTRICT, COLORADO; USGS PROF. PAPER 169, 166 P.

  • Deposit

    MARRS, R.W., 1973, APPLICATION OF REMOTE-SENSING TECHNIQUES TO THE GEOLOGY OF THE BONANZA VOLCANIC CENTER: COLORADO SCHOOL OF MINES PH.D. THESIS T-1531

General comments

Subject category Comment text
Deposit PROSPECTS IMMEDIATELY AROUND COMMON SECTION CORNER LIE ON MAJOR CALDERA SUBRADIAL FRACTURE TRENDING N16 TO 18E. TWO SHAFTS IN SW/4 SEC. 15 LIE BETWEEN THIS FRACTURE AND CONCENTRIC FRACTURE TO EAST AND SOUTH OF BURIED CROSS FRACTURE THAT CONNECTS THE TWO.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1981 Schwochow, Stephen D. Colorado Geological Survey

Beyond USGS

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

Authoritative Colorado resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.