More than just an opportunity to own a patented mining claim - Professionally surveyed 20.66 Ac Black Rock PMC MS 3513 This property is perfect for the urban escape, off grid potential, OHV nature/sport/historical enthusiasts. Nestled in the outskirts of Yerington, Lyon County Nevada. Black Rock mine site is a 20.66 acre patented mining claim in the Pumpkin Hollow area north of the Nevada Copper Mine offers more than just a patented (signed by President Taft) mining claim.