The S.S. Keno was built in 1922 and has a shallow two-foot draft and a narrow beam. These features allowed the ship to navigate through shallow water and sections with ever-changing sandbars and gave it the ability to make turns around tight, narrow curves. The stern-mounted paddlewheel permitted the sternwheeler to land anywhere along riverbanks and it assisted in getting off sandbars. The paddle wheel was protected from snags and sweepers by the hull. The S.S. Keno worked mainly on the Stewart River hauling silver-lead concentrate from Mayo to Stewart City. It was also used for the early and late season trips to Dawson City. The S.S. Keno National Historic Site is open from the May long weekend till the September long weekend.