In every mountainous land the rivers determine the routes of travel. Coursing through gaps in tall ranges and moving down valleys to the sea, the rivers form natural highways, and men follow them afloat, afoot and on wheels. When a river valley happens to connect two large areas that are suitable for habitation, it becomes a well-trodden and much used pathway of commerce, and its history becomes one of movement. Such a valley is the narrow one through which the Cowlitz River flows. Through the years the movement has been steady, sometimes exciting, always interesting. This is the story of the Cowlitz corridor, written in 1953 by one of the area’s most prolific writers.