Introducing Skarloey, Bachmann's first Narrow Gauge Thomas & Friends - locomotive. Narrow Gauge Thomas & Friends - products are HO models that run on N scale track. Running from the main line at Crovan's Gate to the Blue Mountain slate quarry, the Narrow Gauge Skarloey Railway provides important transport for Sodor Mining. As the respected leader of the quarry line, our Skarloey engine is a great start for your Narrow Gauge Railway.