InventorSpot

Black Hills Mining Company has developed and patented a new and proven gold recovery technology that will process minable alluvial sands and gravels without the use or need of water or chemicals. Field tests have demonstrated extremely high recovery ratios and will not produce any waste. Our machines will process all materials wet, dry, or damp. No other machine or process can make this claim.

Black Hills Mining Company is seeking partners or investors to manafacture and market our gold recovery machines.