Western Extension (Baltimore and Harrisburg Railway)
The Western Extension is a Western Maryland section of railway line between Highfield-Cascade, Maryland, and Gettysburg, Pennsylvania. The extension of the Hanover Junction, Hanover and Gettysburg Railroad westward from the Gettysburg Battlefield to Marsh Creek was completed in 1884, crossing the north-south Gettysburg and Harrisburg Railroad and its 1884 Round Top Branch in the borough The line was completed to Orr Station by June 30, 1885, then after an 1886 merger formed the Baltimore and Harrisburg Railway, the to the mainline at Highland near the Mason–Dixon line was completed in 1888-1889. The B&H leased their line to the Western Maryland Railway until the WM purchased it in 1917. The Western Extension used portions of the 1830s Tapeworm Railroad bed and required construction of the Jacks Mountain Tunnel south of Maria Furnace.
