Ralston is an unincorporated community in McIntyre Township, Lycoming County, Pennsylvania, United States.

The Central Pennsylvania Lumber Company, together with the tannery owners, built what would become the Susquehanna & New York Railroad.

After a fire destroyed the tannery in the 1920s, the S&NY seldom made a profit, and operated a skeleton service through the 1930s.

In 1942, with World War II underway, the Interstate Commerce Commission granted permission for the S&NY to cease operations, and the rails were soon pulled up and used at an ammunition plant in Williamsport.

The CPL Company ran their log trains on a line parallel to the PRR as far as the now-extinct town of Grays Run, where there was a saw mill.

This line featured a large wooden trestle crossing Lycoming Creek and the PRR just south of Ralston.

With the Great Depression hitting hard and longer-range engines in use, Ralston terminal was closed and the pusher locomotives transferred to Williamsport.

PRR successor Penn Central closed the Elmira Branch in 1972 after floods destroyed a significant portion of the line.