|Lucky Rock logo description from the Luck Rock Wine Co Website.|
"My dad started prospecting and mining in the early 80's in Siskiyou County. He and a partner filed claims for two mines in the Klamath National Forest around 1984 - the hard rock mine was called Lucky Rock. In addition, my dad and a partner sourced funding for their mining efforts and eventually had several investors from Southern California. The company was named Lucky Rock Mining Company and operated for a few years. The "Lucky Rock" mine was just outside Seiad Valley."
"We grew up in a mining family, digging through the soil for a "Lucky Rock." Now our search has turned to discovering California's lucky vineyards from which we craft this tasty Pinot Noir."With this information I was easily able to find the Lucky Rock mining claims.
|Lucky Rock Mining Co mining claims. Map and information from The Diggings.|
|Geologic map of the Seiad Valley region. Map courtesy of the NGMDB.|
|Diagram of a subduction zone. Image courtesy of the NPS.|
|Plates along the northwestern coast of North America. Image courtesy of the NPS.|
Along the western edge of northern California is the subduction of the Gorda Plate, which is the remnant of the much larger Farallon Plate that used to be subduction along the entire Californian coast. 162 million years ago, during the Late Jurassic, the melted portions of the Gorda Plate produced the Slinkard Pluton as well as the related Wooley Creek batholith (which is a much larger pluton).
As the magma body was cooling, the heat from the magma also heated up the surrounding groundwater. This groundwater, as it was heated rose to the surface, cooled, and descended back down to the magma body, creating a cycle. As the hydrothermal fluids moved from the magma towards the surface and through the surrounding rocks, they moved the heavy metals (such as gold, copper, silver, etc.) from within the magma and redeposit them within the surrounding landscape. Over time the gold would weather out of the surrounding landscape and get transported within neighboring streams and rivers. But due to the density of gold, it would often sit at the bottom of streams until a strong enough current came along to move it further along. These deposits, known as placer deposits, are what the Lucky Rock Mining Co. was searching for.