Northern Pacific bridge near Cle Elum, Washington Territory, in 1887. Timber trestle, mainline. Photo by I.G. Davidson, J.M. Fredrickson collection.. Other Subject Classes: bridge, track

Northern Pacific trestle at Cle Elum, Washington Territory, in 1887. Timber trestle. Photo by I.G. Davidson, J.M. Fredrickson collection.. Other Subject Classes: bridge

Northern Pacific trestle near Cle Elum, Washington Territory, in 1887. Short timber trestle west of Cle Elum. Photo by I.G. Davidson, J.M. Fredrickson collection. Other Subject Classes: bridge

Northern Pacific trestle near Cle Elum, Washington Territory, in 1887. Long timber trestle over marshland. Photo by I.G. Davidson, J.M. Fredrickson collection.. Other Subject Classes: bridge