Canada

Past ProducerStoneUSGS MRDS

Location

StateCalifornia
CountySan Mateo
Coordinates37.48908, -122.39494

Commodities

PrimaryStone
SecondarySand and Gravel, Construction

Mine Details

StatusPast Producer
Deposit TypeSedimentary
Data SourceUSGS MRDS
Source ID10077437

What This Means

This mine is a past producer — it was once operational but is no longer actively mining. Past producer sites may still have environmental impacts including disturbed land, tailings piles, and potential water quality effects. Some past producer sites have been reclaimed, while others remain as-is. Check with your state mining or environmental agency for current site conditions.

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