The Central Oregon and Pacific Railroad (reporting mark CORP) is a Class II railroad operating between Northern California and Eugene, Oregon, United States. It was previously a mainline owned by the Southern Pacific Railroad (SP) between Eugene and Weed, California (north of Redding, California) via Medford, Oregon. SP sold the route on December 31, 1994, in favor of using its route to Eugene via Klamath Falls, Oregon and Cascade Summit.  The total length of the CORP is 439 miles (707 km), consisting of 303 miles (488 km) mainline and the 136-mile (219 km) Coos Bay branch, another line once owned by the SP. Traffic (1996 figure) is estimated at 40,000 cars per year. CORP is a subsidiary of RailAmerica.