Mountain Subdivision

Mountain Subdivision
The yard in Grafton in November, 2009.
Overview
Status	Active
Owner	CSX Transportation
Locale	West Virginia, Maryland
Termini	Grafton Cumberland
Service
Type	Freight rail
System	CSX Transportation
Operator(s)	CSX Transportation
Technical
Number of tracks	2
Track gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Route map Legend MP.0 Bridgeport Subdivision to Clarksburg A&OR Cowen Subdivision 281.6 Berkley Run Junction Fairmont Subdivision 280.2 D Tower 280.1 Grafton 279.0 Grafton Yard 274.7 Thornton 267.4 Newburg 262.0 West End 261.1 Kingwood Tunnel 260.3 Tunnelton WV Northern RR 258.1 Tunnelton defect detector 254.5 Rowlesburg R&S RR M&K RR 253.6 M & K Junction 237.7 WV MD 233.4 Youghiogheny River 231.9 Oakland 229.5 Mountain Lake Park 216.2 Hitchcock Tunnel 208.5 Bloomington 208.26 Bloomington Viaduct over North Branch Potomac River MD WV 208.25 Thomas Subdivision 207.8 WV Central Junction 207.6 Thomas Subdivision 206.5 Piedmont 203.1 Keyser Yard 201.6 Keyser 200.5 Industrial Park 199.5 North Branch Potomac River WV MD WM Trussle Thomas Subdivision 198.9 Twenty First defect detector Dawson 194.9 Black Oak 191.5 Rawlings 189.9 Lowndes 187.0 McKenzie Patterson Creek Cutoff to Cumberland Subdivision 185.2 Brady 183.1 Allegany County Fairgrounds WM Thomas Subdivision to WM Scenic RR 179.6 Beall St. WM Scenic RR Wills Creek Keystone Subdivision 178.9 Viaduct Junction Cumberland Terminal Subdivision This diagram: view talk edit

The Mountain Subdivision is a railroad line owned and operated by CSX Transportation in the U.S. states of Maryland and West Virginia. The line runs from Cumberland, Maryland, west to Grafton, West Virginia,^[1] along the original Baltimore and Ohio Railroad (B&O) main line. It was known as the West End Subdivision until the B&O's absorption into the Chessie System, and included the B&O's original crossing of the Allegheny Mountains. Through CSX traffic to the west from Cumberland now uses the Keystone Subdivision over Sand Patch Grade.^[2]

At its east end, the Mountain Subdivision becomes the Cumberland Terminal Subdivision at Beall Street. It junctions the Thomas Subdivision twice – near Keyser, West Virginia, and near Piedmont, West Virginia – and meets the Fairmont Subdivision near its west end at Grafton. At its west end, it continues as the Bridgeport Subdivision. The Mountain Subdivision's summit is at Altamont, Maryland, at the west end of the Seventeen Mile Grade; the grade's east end is at Piedmont, West Virginia.^{[3] [4] [5]}