 The B&O bought the 10-mile Somerset & Mineral Point Railroad in 1879 for $60,000, knowing that an extension of the line to Johnstown, Pennsylvania, in Cambria County, was quite possible.The Johnstown & Somerset Railroad followed the Stonycreek valley north-by-northeast from Somerset through Stoystown to Johnstown; it was built in 1881..The result was a rail line known as the Somerset & Cambria Branch Railroad stretching between the Pittsburgh & Connellsville Railroad at Rockwood and the Pennsylvania Railroad at Johnstown.