AN UNNAMED COPLEY GREENSTONE/QUARTZ MINE ALONG THE SACRAMENTO RIVER TRAIL NEAR REDDING.

Above: this photograph of the adit was taken by Jeremy Tuggle on September 19, 2020.

This unnamed Copley Greenstone/Quartz mine is located along the upper Sacramento River Trail on the east side of the Sacramento River. A marker at that location details the geological history of the mine. The marker states the following:

“This trail to a mine in the Old Diggings (Buckeye) Mining District leads past outcroppings of Copley greenstone, a basement rock in this part of of the Klamath Mountains believed to be about 400 million years old. Composed of old lava flows and some river sediments, the rock was altered by heat and pressure over the centuries to its present greenish hue on freshly broken surfaces. Veins like this mine were tapped for their gold and silica content. In the early 1900s, the low-grade quartz ore was mined chiefly for its silica, used as a fluxing agent in nearby Iron Mountain and other copper smelters.”

Above: this video was filmed by Jeremy Tuggle on location on September 19, 2020.