Bloomers Cut, named for its location on the Bloomer Ranch, remains virtually unchanged since its original construction in 1864. A small band of Chinese laborers undertook the overwhelming task of building it, using picks, shovels, and black powder to inch their way through conglomerate rock cemented together with rock-hard clay. At the time of its completion, Bloomers Cut was considered the eighth wonder of the world. The first Central Pacific train rolled into Auburn on May 11, 1865.