Past ProducerCalcium, Iron, Manganese, SilicaSurfaceUSGS MRDS
Location
State
California
County
Sonoma
Coordinates
38.53548, -123.18078
Commodities
Tertiary
Calcium, Iron, Manganese, Silica
Mine Details
Status
Past Producer
Type
Surface
First Production
1924
Data Source
USGS MRDS
Source ID
10238682
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.