"Southern Pacific, Portland to Dunsmuir Volume 3: The Story Behind The Picture" is a book published in 2023 in the United States. Focused on railroadiana and transportation collectibles, this volume provides a detailed account of the history and operations of the Southern Pacific Railroad along the Portland to Dunsmuir route. With a strong emphasis on history and visual documentation, this book offers readers a comprehensive look at the trains and transportation systems of the region, making it a valuable resource for collectors and enthusiasts interested in the history of railroads in the United States.