U.S. Geological Survey Geographic Names Information System: Nubieber, California; U.S. Geological Survey Geographic Names Information System: Nubieber, California. Nubieber (formerly, Big Valley City and New Town) is a census-designated place in Lassen County, California. It was located at the common terminus of the Western Pacific Railroad and the Great Northern Railway Bieber Line 3 miles (4.8 km) southwest of Bieber, at an elevation of 4121 feet (1256 m).