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  3. Mineral Resource Data System (MRDS)

Portland Limestone Quarry

Producer in Fremont county in Colorado, United States with commodity Stone, Crushed/Broken
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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. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Land status
  10. Ownership information
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10166584
MAS/MILS ID 0080430010
Record type Site
Current site name Portland Limestone Quarry

Geographic coordinates

Point of reference Trench
Geographic coordinates: -105.01996, 38.39561 (WGS84)
Elevation 1524
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Fremont(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Florence(quadrangle 1:24,000 scale)

Canon City(quadrangle 1:100,000 scale)

Pueblo(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Arkansas(hydrologic unit)

Upper Arkansas(hydrologic accounting unit)

Upper Arkansas(hydrologic subregion)

Arkansas-White-Red(hydrologic region)

Geographic areas

Country State County
United States Colorado Fremont

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 019 S 068 W 17 Colorado

Commodities

Commodity Importance
Stone, Crushed/Broken Primary

Nearby scientific data

Trench (1) Niobrara Fm
ListMap

Economic information

Economic information about the deposit and operations

Operation type Surface
Development status Producer
Commodity type Non-metallic
Significant No

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Owner
    Owner Ideal Cement Co., Ideal Basic Industries, Inc.
    ID 500037
    Home office Colorado
    Year 1979

Reference information

Bibliographic references

  • Deposit

    USBM YEARLY PROD TABULATIONS OWN-OP- IDEAL BASIC IND

  • Deposit

    MSHA REVISION BY MILS 2-80

Reporter information

Type Date Name Affiliation Comment
Reporter 17-NOV-1983 Intermountain Field Operations Center (IFOC) U.S. Bureau of Mines

Beyond USGS

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

Current status (per MSHA)

StatusActive since 08/09/1983
MSHA mine ID0500037
Mine name (MSHA)Amrize Portland Plant
Current operatorAmrize Cement Inc.
Current controller (parent)Amrize Ltd
Mine typeFacility (Metal / non-metal)

MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.

Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.

External references

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.