Point of Rocks is a historic passenger rail station on the MARC Brunswick Line between Washington, D.C., and Martinsburg, WV, located at Point of Rocks, Frederick County, Maryland, United States. The station was built by the Baltimore and Ohio Railroad in 1873, and designed by E. Francis Baldwin. It is situated at the junction of the B&O Old Main Line (running to Baltimore) and the Metropolitan Branch (running to Washington, D.C.). The Met Branch also opened in 1873 and became the principal route for passenger trains between Baltimore, Washington and points west.