Mendocino Co. No.136

Past ProducerManganese, SilicaSurfaceUSGS MRDS

Location

StateCalifornia
CountyMendocino
Coordinates39.30957, -123.19049

Commodities

TertiaryManganese, Silica

Mine Details

StatusPast Producer
TypeSurface
Data SourceUSGS MRDS
Source ID10115980

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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