Bloomer Cut is 800 feet long and about 63 feet deep and remains virtually unchanged since its original construction in 1864 as part of theTranscontinental Railroad. The overwhelming task of construction was undertaken by the diligent, hard working efforts of a small band of Chinese laborers. Using picks, shovels and black powder, they inched their way through the 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.
Mystery that surrounds the Cut is whether or not the work was done mostly by Chinese workers.