Spokane and Inland Empire Railroad

The Spokane and Inland Empire Railroad Company (S.&I.E.R.R.Co.) was a railroad company that operated an electric streetcar system in Spokane, Washington and an electrified interurban railway extending beyond Spokane into the Palouse region and northern Idaho. The raildroad company also constructed and operated a central terminal building and Nine Mile Dam.The system originated in several predecessor roads beginning in 1888, was incorporated in 1906, and ran under its own name to 1929.

Source: Wikipedia — Spokane and Inland Empire Railroad (CC BY-SA 4.0)