Black Hump Claim

Past ProducerManganeseUSGS MRDS

Location

StateWashington
CountyMason
Coordinates47.53062, -123.32932

Commodities

PrimaryManganese

Mine Details

StatusPast Producer
Last Production1924
Data SourceUSGS MRDS
Source ID10098699

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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