Ralston Quarry — Quarry and material-source record

Primary commodity in source: Crushed, Broken Stone NEC; Operator in source: Oldcastle SW Group, Inc. Recorded location: Jefferson, CO. Review the recorded source identity, location and material information together. Confirm current eligibility and operating details with the original publisher.

StateCO

Source-backed record from MSHA surface aggregate mine register. Browse the labeled observations and original source below.

Source collection: MSHA surface aggregate mine register
Source checked: 2026-10-15

Reported record details

Fields retain their source labels and context. Read the original source for full details, qualifications and current status.

Source data row 8612

MSHA mine-register snapshot: INTERMITTENT operation in the source. This is not a claim of continuous production, current availability or DOT materials approval. Coordinates are reported by the source and may represent portable operations.

MSHA mine ID: 0503007
Mine name in source: Ralston Quarry
Mine type in source: Surface
Status in source: Intermittent
Status effective date in source: 07/22/2026
Operator in source: Oldcastle SW Group, Inc
State: CO
County: Jefferson
Nearest town in source: Golden
Primary commodity code: 142900
Primary commodity in source: Crushed, Broken Stone NEC
Portable operation flag (Y/N): N
Reported latitude: 39.813889
Reported longitude: -105.248056

Open original mine-register download ↗

Document index

Select a heading to open its source page. Use your browser’s Find function to locate a heading here.

Source page	Heading or source document
—	Source data row 8612 · MSHA mine-register snapshot: INTERMITTENT operation in the source. This is not a claim of continuous production, current availability or DOT materials approval. Coordinates are reported by the source and may represent portable operations.

Sources & dates

Open original source file ↗

Publisher’s source collection ↗

Retrieved 2026-10-15. Original files remain with their publishers; the displayed fields and navigation retain their source context.

Open the original source for complete definitions, qualifications and footnotes.

Reported record details

Source data row 8612

Document index

Sources & dates

More records from this source