Marks & Thompson Mine

Chromium past producer · Grant County, Oregon

Past ProducerChromiumUndergroundUSGS MRDS

Section

What kind of site this is
SHAFTORE · CHROMIUMLEVELSSECTION · ILLUSTRATIVE

Drawn as an underground mine, reached by a shaft or tunnel and worked along the ore. The ore color stands for chromium. Federal records note the kind of operation and its status, not its depth or layout, so this is a typical example rather than a survey of this site.

Location

StateOregon
CountyGrant
Coordinates44.37045, -118.74465

Commodities

PrimaryChromium

Mine Details

StatusPast Producer
TypeUnderground
Data SourceUSGS MRDS
Source ID10298262
This siteNearby records

Search within 10 miles of here Open in Google Maps

Nearest Recorded Sites

SiteDistanceCommodityStatus
Big Jim0.0 miChromiumProducer
Mosier0.7 miChromiumOccurrence
Mosier Deposit0.7 miChromiumUnknown
Ray Prospects0.7 miChromiumProspect
Ray Prospects0.8 miChromiumOccurrence
Lost Buck1.0 miChromiumOccurrence
Lost Buck Claim1.0 miChromiumProspect
Ajax Mine1.4 miChromiumPast Producer
Ajax Mine1.4 miChromiumPast Producer
Blue Chrome Mine1.6 miChromiumProspect
Howard Prospects1.6 miChromiumPast Producer
Howard Prospect1.7 miChromiumPast Producer

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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