The Spokane and Inland Empire Railroad Company later merged into a United States-based company formed from a merger of four what?
Spokane and Inland Empire Railroad: The Spokane and Inland Empire Railroad Company (S.&I.E.R.R.Co.) Spokane and Inland Empire Railroad:  It merged into the Great Northern Railway and later, the Burlington Northern Railroad, which operated some roads into the 1980s.
i don't know