The placer mining in this location was very successful, but wreaked havoc on the natural landscape. Miners were limited to claims of 8 square feet (0.75 m2) and yet many were still able to become wealthy. The Murphy brothers themselves, however, made far more money as merchants than as miners. In fact, John was so successful that he left town at the end of 1849 and never returned, having amassed a personal fortune of nearly $2 million. Roughly $20 million in gold was discovered in Murphys and the surrounding area. Two of the richest diggings were named Owlsburg and Owlburrow Flat.
