Remembering the trains that ran by his boyhood home, Carlos Schwantes says, "Never once did it occur to me to ponder whether we lived on the right or wrong side of the tracks. I only felt fortunate to have a front-row seat." Out of his lifelong fascination, blended with a historian's insight, he has fashioned a pathbreaking photohistory that shows the impact of the railroads on everyday life in Oregon, Washington, Idaho, and Montana. The desert expanses...