Western Maryland Railroad Right-of-Way, Milepost 126 to Milepost 160 is a historic section of the Western Maryland Railway (WM) in Allegany County, Maryland, and in Morgan County, West Virginia. It is an abandoned 34 miles (55 km) section of the right-of-way between milepost 126 at the intersection of the Chesapeake and Ohio Canal (C&O) and Long Ridge Road, Woodmont, and milepost 160 just west of Maryland Route 51, North Branch. It closely parallels the Potomac River and the C&O Canal running along the north bank of the river. Seven miles of the roadbed are in West Virginia near Paw Paw, and include three tunnels.
WM completed opened the line between Hagerstown and Cumberland, Maryland in 1906. It was abandoned by the Chessie System in 1975.
The National Park Service acquired the roadbed in 1980 for the C&O Canal National Historical Park. It was listed on the National Register of Historic Places in 1981. Towns it is listed in include North Branch, Oldtown, Little Orleans and Woodmont, Maryland, and Jerome, West Virginia.
- Western Maryland Railroad Right-of-Way, Milepost 126 to Milepost 160, Allegany County, including photo from 1981, at Maryland Historical Trust
- Historic American Engineering Record (HAER) No. MD-175, "Western Maryland Railway, Cumberland Extension, Pearre to North Branch, from WM milepost 125 to 160, Pearre, Washington County, MD", 158 photos, 38 measured drawings, 121 data pages, 12 photo caption pages