Trojan, also known as Portland, is a ghost town in the Black Hills of Lawrence County, South Dakota.

Steel and powder, which were required to run the mines, increased in price, but gold remained $35 an ounce, which it had been since 1934.

In 1983, the open pit Wharf Mine was established in the Trojan area and continues in operation to this day.

[2] It has grown to the extent to have completely enveloped the old townsite and Bald Mountain Mill so that there are no historic remains at those sites.

Trojan is located in the Black Hills of central Lawrence County, South Dakota, United States.