Since water, needed for refinement of ore, was not present near the mine, a mill was established away on the west bank of the San Pedro River, in a town that came to be known as Mammoth, after the mine and the mill. The ore was hauled to the mill by way of mule teams, until just after the start of the 20th century when an aerial tram was completed between the Mammoth Mine and the Mammoth Mill. As the tram's construction neared completion, and the need for the town waned, the Schultz post office was closed on May 1, 1902.