Mason Materials - Humboldt, CA

Section

What kind of site this is

Drawn as a processing plant or mill, where ore from mines is crushed and refined. The ore color stands for crushed, broken stone nec. 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

State	California
County	Humboldt
Nearest Town	Arcata
Coordinates	40.90750, -124.04583

Commodities

Primary

Crushed, Broken Stone NEC

Mine Details

Status	Abandoned
Type	Facility
Operator	Mason Materials LLC
Data Source	MSHA
Source ID	0405646

This siteNearby records

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Nearest Recorded Sites

Site	Distance	Commodity	Status
Essex Gravel Bar	0.1 mi	Sand and Gravel, Construction	Producer
Graham Pit and Mill	0.3 mi	Sand and Gravel, Construction	Producer
Mercer-Fraser Co	0.5 mi	Sand and Gravel, Construction	Producer
Mercer Fraser Co.	0.5 mi	Sand and Gravel, Construction	Occurrence
Tom Hull	0.5 mi	Sand and Gravel, Construction	Prospect
Tom Hull	0.9 mi	Sand and Gravel, Construction	Occurrence
Kernen Portable Crusher I	1.2 mi	Crushed, Broken Stone NEC	Abandoned
Chriestie Bar	1.4 mi	Sand and Gravel, Construction	Producer
Eureka Ready Arcata Pit	1.4 mi	Construction Sand and Gravel	Abandoned
Korblex Bar	1.7 mi	Sand and Gravel, Construction	Producer
Graham Pit and Mill	1.7 mi	Sand and Gravel, Construction	Producer
Hanes Creek	1.7 mi	Manganese	Producer

What This Means

This mine is listed as abandoned or sealed in federal records. Abandoned mines can pose safety and environmental risks, including unstable ground, toxic gas accumulation, flooded shafts, and potential groundwater contamination from heavy metals or acid mine drainage. Never enter an abandoned mine. If you live near this site, consider checking with your state environmental agency about any ongoing remediation or monitoring programs.

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