Black Hump

Past ProducerManganeseUSGS MRDS

Location

StateWashington
CountyMason
Coordinates47.53039, -123.32626

Commodities

TertiaryManganese

Mine Details

StatusPast Producer
Discovery Year1924
Data SourceUSGS MRDS
Source ID10204747

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.

Other Mines in Mason County

View all mines in Mason County →

Other Manganese Mines in Washington

All manganese mines in Washington →