"Edwin L. Bonner built a ferry at this point in 1864 to transport gold rush customers across the Kootenai River to British Columbia. This ferry operated until after the turn of the century when a bridge was built. Today, Bonners Ferry, pop. 1909, is the County Seat of Boundary County and a favorite stop for travelers to and from Canada 35 miles north on Hwy. 95 or from Montana on Hwy. 2. Lumbering and the fertile Kootenai River Valley farmland support the economy."
Looks like 1960s.