The Bell's Gap Railroad was a 8.5 mile line in Cambria County, Pennsylvania. Built in three-foot gauge, it was opened in June 1873. The line had grades of up to three percent and multiple long curves with a radius of 206 feet. Their first locomotive was a 0-6-0 built by Baldwin in July 1872, costing 8,250 dollars and designated class 11 D 1 by its manufacturer. For the first half year of operation of the line, No. 1 was the only locomotive. It went to the Houston East & West Texas Railway in 1881, two years before the line was converted to standard gauge.