 It is difficult to identify when the first non-Indian settler arrived in what is now the Borough of Scottdale, although the area witnessed an influx of Scotch-Irish immigrants in the late 1770s.In the mid-19th century, part of the present-day townsite was the location of a distillery, flour mill and post office known as Fountain Mills.The Pennsylvania Railroad and Baltimore and Ohio Railroad each built branch lines through the community in the early 1870s.