Most are members of the Association of Tourist & Heritage Rail Australia (ATHRA).
[1] In addition to active operations, abandoned and putative operations are also included, but static museum sites and rolling stock operators without a 'dedicated' line do not fall within Wikipedia's definition of heritage railways.
Lines named in red are lacking a detailed Wikipedia entry.
This railway operates on 24 kilometres (15 mi) of track, with much of its original rolling stock built as early as 1898.
See also Transport Heritage NSW[2] 1,067 mm (3 ft 6 in) gauge 1,067 mm (3 ft 6 in) gauge unless otherwise stated.