| S&C Subdivision | |
| Other Name: | Somerset and Cambria Subdivision |
| Type: | Freight rail |
| System: | CSX |
| Status: | Operational |
| Locale: | Pennsylvania |
| Start: | Rockwood |
| End: | Johnstown |
| Owner: | CSX |
| Operator: | CSX |
| Tracks: | 1 |
| Signalling: | BFC |
| Map State: | uncollapsed |
The S&C Subdivision is a railroad line owned and operated by CSX Transportation in the U.S. state of Pennsylvania. The line runs from the Keystone Subdivision at Rockwood north to Johnstown[1] [2] [3] along a former Baltimore and Ohio Railroad line, once the Somerset and Cambria Railroad.
The Somerset & Mineral Point Railroad connected Somerset to what was then the Pittsburgh & Connellsville Railroad as it passed through Rockwood (then called Mineral Point)[4] in the early 1870s.
The Johnstown & Somerset Railroad followed the Stonycreek valley north-by-northeast from Somerset through Stoystown to Johnstown around 1880. The Somerset & Mineral Point Railroad and the Johnstown & Somerset Railroad were combined and reorganized as the Somerset and Cambria Branch Railroad.
Through leases and mergers, the line became part of the B&O and then CSX.