Gold was found at Bidwell Bar, one of the first gold mining sites in California, bringing thousands of prospectors to the Oroville area seeking riches. Now inundated by the waters of enormous Lake Oroville, which was filled in 1968, Bidwell Bar is memorialized by the Bidwell Bar Bridge, an original remnant from the area and the first suspension bridge in California (California Historical Landmark #314). In the early 20th century the Western Pacific Railroad completed construction of the all-weather Feather River Canyon route through the Sierra Nevadas giving it the nickname of "The Feather River Route". Oroville station would serve as an important stop for the "California Zephyr" during its 20-year run. In 1983, this became a part of the Union Pacific Railroad as their Feather River Canyon Subdivision. A major highway, State Route 70, roughly parallels the railroad line winding through the canyon.