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Bonita Claims

Past Producer in Saguache county in Colorado, United States with commodities Uranium, Vanadium
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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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Land status
  16. Production statistics
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10012584
MRDS ID D008270
Record type Site
Mineralized Area Marshall Pass
Current site name Bonita Claims
Related records 10119048

Geographic coordinates

Geographic coordinates: -106.16143, 38.40361 (WGS84)
Elevation 2731
Relative position 4.7 MILES N 81 E FROM MARSHALL PASS

Site location context

Political divisions (FIPS codes)

Saguache(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Ouray(quadrangle 1:24,000 scale)

Saguache(quadrangle 1:100,000 scale)

Montrose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Arkansas Headwaters(hydrologic unit)

Upper Arkansas(hydrologic accounting unit)

Upper Arkansas(hydrologic subregion)

Arkansas-White-Red(hydrologic region)

Federal lands

Pike and San Isabel 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 Saguache

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 048N 007E 14,23 S2 (14); N2 (23) Colorado

Comments on the location information

  • CLAIMS LIE ALONG PONCHA CR. IN UNSURVEYED SEC. 23 ; INFO FROM LAND.ST :(1976)

Commodities

Commodity Importance
Uranium Primary
Vanadium Critical Primary

Materials information

Materials Type of material
Hematite Gangue
Pyrite Gangue

Alteration

  • (Local) Strong Sericitization And Kaolinitization; Iron Oxides

Analytical data

Result BACKGROUND RADIOACTIVITY 0.08 TO 0.10 MR/HR, RANGE 0.2 TO 1.0 MR/HR. RADIOMETRIC ASSAYS RANGE FROM 0.008 TO 0.35% U308
Result CHEMICAL ASSAYS RANGE FROM 0.026 TO 0.526% U308. ORE GRADE WAS 0.144% U308.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Granite;Bonanza Volcanic
    Rock description Granite;Bonanza Volcanic Pile
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Latite
    Rock type qualifier Tuffs related to Bonanza Caldera or Marshall Pass Caldera
    Stratigraphic age (youngest) Eocene

Nearby scientific data

(1) -106.16143, 38.40361
ListMap

Economic information

Geologic structures

Type of structure Local
Structure name ENE trending fault
Structure description Bonanza Caldera
Type of structure Regional
Structure description Sawatch Range, Bonanza Volcanic Field, Rio Grande Rift

Ore body information

  • General form tabular
    Strike N 40 W
    Dip 25 S
    Thickness 0.6M
    Depth to top 22.9M

Controls for ore emplacement

  • carbon rich zones in altered andesitic volcanic rocks

Comments on the geologic information

  • POSSIBLE CALDERA RADIAL FAULT TRENDS APPROX N 42 W

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1954
Year of first production 1955
Year of last production 1958

Land status

Ownership category National Forest

Production statistics

  • Year 1958
    Period 1955-1958
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major U3O8 Ore Uranium Uranium 0wt-pct

Comments on the workings information

  • ONE TUNNEL HEADING NW; 375 FT TOTAL UNDERGROUND WORK

Reference information

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.

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.