1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Marshal Or Langford Surface Iron

Producer in Boulder county in Colorado, United States with commodity Iron
Map
XML
JSON
KML
D
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. Economic information about the deposit and operations
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10017364
MRDS ID DC03346
Record type Site
Current site name Marshal Or Langford Surface Iron

Geographic coordinates

Geographic coordinates: -105.21114, 39.96443 (WGS84)

Site location context

Political divisions (FIPS codes)

Boulder(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Louisville(quadrangle 1:24,000 scale)

Denver West(quadrangle 1:100,000 scale)

Denver(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

St. Vrain(hydrologic unit)

South Platte(hydrologic accounting unit)

South Platte(hydrologic subregion)

Missouri(hydrologic region)

Geographic areas

Country State County
United States Colorado Boulder

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 01S 70W 15 Colorado

Commodities

Commodity Importance
Iron Primary

Materials information

Materials Type of material
Limonite Ore
Siderite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Coal
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -105.21114, 39.96443
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: SIDERITE OCCURS AS NODULES CONFINED TO A THIN SEAM LYING ON A COAL BED. SIDERITE RELEASED BY WEATHERING AND OXIDIZED TO HEMATITE AND LIMONITE IS FOUND AS NODULES SCATTERED ABOUT THE SURFACE.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Production years 1873

Comments on the production information

  • 250 TONS OF IRON IN 2 MONTHS (1873). APPROX 2 1/2 TONS OF NODULES / TON OF PIG IRON

Comments on the reserve resource information

  • WORKINGS INACCESIBLE ABANDONED

Reference information

Bibliographic references

  • Deposit

    U.S. BUREAU OF MINES MINERAL EXAM. FILE

  • Deposit

    CONSV. DIV. COMP. DATE, 1,62

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1973 Conservation Division Files 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.