- Site Profile - Altoona Mine Site - EPA OSC Response
The Altoona Mine is an abandoned mercury mine located approximately 11 miles (as the crow flies) west of the town of Castella in Trinity County, California The approximate geographic coordinates of the mine are 41 E 8'12 7" north latitude, 122 E 32'51" west longitude
- Alta California - Wikipedia
Following the Mexican War of Independence, it became a territory of Mexico in April 1822 [2] and was renamed Alta California in 1824 The territory included all of the present-day U S states of California, Nevada, and Utah, and parts of Arizona, Wyoming, and Colorado
- Altoona Mine Topo Map in Trinity County, California
Free printable topographic map of Altoona Mine in Trinity County, CA including photos, elevation GPS coordinates
- Altoona Mine - Western Mining History
"Where to Find Gold in California" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in California
- Altoona Mercury Mine Near Castella, California | The Diggings™
The Altoona Mercury Mine is located near Castella, California within the boundaries of the Shasta National Forest Its discovery dates back to 1871, marking the beginning of its operations Currently, the mine is closed, and there are no known plans for future re-opening
- Altoona Mine (Castella Corp. Mine; Rare Metals Corp. of America . . .
A former Hg-Cu-Cr-Mn mine located in secs 22, 26 28, T38N, R6W, MDM, 4 5 km (2 8 miles) E of Ramshorn Summit, along the East Fork of the Trinity River, on National Forest land Discovered in 1871 First produced before 1875 Operated 1875-1880, 1894-1901, and 1929-1945 (intermittent)
- Altoona Mine EPA Emergency Response - California Department of Conservation
Altoona Mine EPA Emergency Response Shasta Trinity National Forest Free Elemental Mercury
- Visitor Information - Explore Altoona
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