The "Ant" on display in Longview Washington, April 1925.

Caption on reverse reads: A feature exhibit of the second annual openhouse festival of Longview, Wash., was "The Ant", first logging locomotive ever used in the Pacific northwest. Weighing six tons less than the average steam tractor, it still does a day's work. "The Ant" was built in 1871 in San Francisco.

PacificNG Collection.