Napa Quarry — Quarry and material-source record

Primary commodity in source: Sand, Industrial NEC; Operator in source: CalMat Co. Recorded location: Napa, CA. Review the recorded source identity, location and material information together. Confirm current eligibility and operating details with the original publisher.

StateCA

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 5609

MSHA mine-register snapshot. Active means the status reported in this download, not a current operating guarantee or DOT materials approval. Coordinates are reported by the source and may represent portable operations.

MSHA mine ID
0400023
Mine name in source
Napa Quarry
Mine type in source
Surface
Status in source
Active
Status effective date in source
03/06/2024
Operator in source
CalMat Co
State
CA
County
Napa
Nearest town in source
napa
Primary commodity code
144600
Primary commodity in source
Sand, Industrial NEC
Portable operation flag (Y/N)
N
Reported latitude
38.261944
Reported longitude
-122.275833

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

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