The inscribed bolder marks the spot, where on Dec. 24, 1852, the rails of the B&O were joined forming a railroad link between Baltimore (the Atlantic Ocean) and the Ohio River. This site is the original Promontory Point linking the two water drainages. Construction of the railroad was started on July 4, 1928, and its completion represented one of the major milestones in United States history and development. The railroad aided commerce and westward expansion.
