Located on the northwest corner of First and Pennsylvania Streets in Roslyn was the Northwestern Improvement Company's large brick store building. Often referred to as the N.W.I. Store, the company supplied most of the food, clothing and hardware needs of the people living in the Roslyn area. The company also had stores in Ronald and Cle Elum.Postcard titled: "N.W.I. Store. Roslyn, Wash."
"Northwestern Improvement Company Store" (1935). Ellensburg History Photographs. 16.
Local History Collection Photographs, Ellensburg Public Library
Kittitas County (Washington) -- Buildings, Historic, Historic buildings -- Washington (State) -- Kittitas County, Northwestern Improvement Company Store (Roslyn, Wash.), N.W.I. Store (Roslyn, Wash.), Stores, Retail -- Washington (State) -- Roslyn