The West Colton map is an excellent black and white drawing of the entire yard and facilities of Southern Pacific's Classification Yard. This map was drawn from original Southern Pacific blue prints and painstakingly edited from field checks and edited by an engineer who works at that facility. Each track shows its name or number, includes all landmarks, local roads, buildings, facilities and landmarks. The perfect companion when visiting West Colton or railfanning Beaumont Hill! 9"x30".