Frazier Mountain

Past ProducerBoron-BoratesUSGS MRDS

Location

StateCalifornia
CountyVentura
Coordinates34.78329, -119.06763

Commodities

PrimaryBoron-Borates
TertiaryGypsum-Anhydrite

Mine Details

StatusPast Producer
Deposit TypeSEDIMENTARY-LACUSTRINE
First Production1899
Last Production1913
Discovery Year1898
Data SourceUSGS MRDS
Source ID60001096

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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