The Maryland and Pennsylvania Railroad (reporting mark MPA), colloquially known as the "Ma and Pa", was an American short-line railroad between York and...

The Pennsylvania Railroad in Maryland company was organized in 1876. According to its charter, it was to run from Cumberland, Maryland to the Pennsylvania...

Western Maryland Railway (reporting mark WM) was an American Class I railroad (1852–1983) that operated in Maryland, West Virginia, and Pennsylvania. It was...

Class I Railroad in the United States connecting Baltimore, Maryland, with Sunbury, Pennsylvania, along the Susquehanna River. Completed in 1858, the...

The Western Maryland Scenic Railroad (WMSR) is a heritage railroad based in Cumberland, Maryland, that operates passenger excursion trains and occasional...

Class I railroad that was established in 1846 and headquartered in Philadelphia, Pennsylvania. At its peak in 1882, the Pennsylvania Railroad was the...

Valley Railroad (LVRR) (North Shore Railroad (Pennsylvania)) Maryland Midland Railway (MMID) (Genesee & Wyoming) Middletown & Hummelstown Railroad (MIDH)...

of the Pennsylvania Railroad (PRR) is a railroad line from Clayton, Delaware through Delaware and Maryland to Oxford, Maryland. It was built in pieces...

lines. In response, the B&O chartered the Philadelphia Branch in Maryland and the Baltimore and Philadelphia Railroad in Delaware and Pennsylvania and built...

1881, the PW&B was purchased by the Pennsylvania Railroad (PRR), which was at the time the nation's largest railroad. In 1902, the PRR merged it into its...

Baltimore and Washington Railroad (PB&W) was a railroad that operated in Pennsylvania, Delaware, Maryland, and the District of Columbia in the 20th century,...

Railroad is a borough in York County, Pennsylvania, United States. The population was 259 at the 2020 census. It is part of the York–Hanover metropolitan...

The Maryland and Delaware Railroad Company (reporting mark MDDE) is a Class III short-line railroad, formed in 1977 to operate several branch lines of...

and Pennsylvania Line railroad ran from Frederick, Maryland to the Pennsylvania-Maryland State line, or Mason–Dixon line near Kingsdale, Pennsylvania consisting...

Baltimore and Washington, the Pennsylvania Railroad-owned Baltimore and Potomac Railroad (B&P) was completed between the two cities in 1872. The PW&B was initially...

and Norfolk Railroad (reporting mark NYP&N) was a railroad line that ran down the spine of the Delmarva Peninsula from Delmar, Maryland to Cape Charles...

The Columbia and Port Deposit Railroad (C&PD) was a railroad that operated in Pennsylvania and Maryland in the 19th and early 20th centuries. It operated...

Pennsylvania Railroad 1361 is a 4-6-2 K4 "Pacific" type steam locomotive built in May 1918 by the Pennsylvania Railroad's (PRR) Juniata Shops in Altoona...

Valley Railroad (reporting mark CVRR) was an early railroad in Pennsylvania, United States, originally chartered in 1831 to connect with Pennsylvania's Main...

The Muddy Creek Bridge, Maryland and Pennsylvania Railroad is a historic Pratt through truss railroad bridge in Lower Chanceford Township and Peach Bottom...

The Maryland Mining Company is a historic coal mining, iron producer and railroad company that operated in Allegany County, Maryland, United States. The...

Creek Bridge-North, Maryland and Pennsylvania Railroad is a historic railroad bridge in Peach Bottom Township, York County, Pennsylvania. It was built about...

Bridge, Maryland and Pennsylvania Railroad is a historic wooden trestle railroad bridge in Peach Bottom Township, York County, Pennsylvania. It was built...

The Railroad Museum of Pennsylvania is a railroad museum in Strasburg, Lancaster County, Pennsylvania. The museum is located on the east side of Strasburg...

The following railroads merged to form the Pennsylvania Railroad (PRR). On February 1, 1968, the PRR merged into Pennsylvania New York Central Transportation...

The Cumberland and Pennsylvania Railroad (C&P) was an American railroad which operated in Western Maryland. Primarily a coal hauler, it was owned by the...

locating branch railroads such as the Pennsylvania railroad in Maryland and for the Western Maryland railroad. Haydon was born on June 21, 1830, in Alexandria...

built by the Frederick and Pennsylvania Line railroad. This railroad ran from Frederick, Md to the Pennsylvania-Maryland State line, or Mason–Dixon line...

destroyed by a fire in 1910. The Pennsylvania Railroad (PRR), which had controlled the B&P since the 1870s and acquired it outright in 1902, immediately...

Bridge, Maryland and Pennsylvania Railroad, Delta, Pennsylvania Pennsylvania Railroad Old Bridge over Standing Stone Creek, Huntingdon, Pennsylvania Pennsylvania...