Tag Archives | Mammoth Stamp Mill


Mammoth Stamp Mill Site closed due to risks

Press release The Inyo National Forest is closing the Mammoth Stamp Mill Site due to elevated levels of metals that were determined to pose a risk to human health and the environment. Antimony, arsenic, lead, and mercury were identified as the primary chemicals of concern. U.S. Forest Service completed a Preliminary Assessment/Site Inspection (PA/SI) at the Mammoth Stamp […]

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