The M/V Sanpoil is the only Washington State Department of Transportation (WSDOT) owned and operated ferry in Eastern Washington; the others are on Puget Sound in Western Washington. This was the first ferry crossing operated by the state of Washington; the Puget Sound ferries did not commence until 1951.
Hours of operation are 6:00 a.m. to Midnight 7 days per week. The fare to ride is free. The northern dock has no services and has no official name, but is closest to the community of Keller. The southern dock is in Clark.