This line was an attempt to connect the north coast railway to the main northern across the escarpment. In the east it started at Glenreagh but reached no further than Dorrigo. Due to the steep terrain and weather conditions the line was frequently closed for repairs. For example, the Daily Examiner (ex. Grafton) reported "LANDSLIDES ON DORRIGO-GLENREAGH LINE."
Services finally ceased in the early '70s and the right of way was eventually split between 2 preservation groups. While some occasional tourist services have been run on the low land section a vast collection of static locomotives and rolling stock silhouettes the Dorrigo skyline and is, according to the web site, "not yet open to the public"!