In 1879, a narrow 3 ft 6 in (1,067 mm) gauge line opened from Beachport (Rivoli Bay North) through Millicent to Mount Gambier.

On 28 November 1917, a broad gauge line opened from Mount Gambier to Heywood near Portland.

[3] In the late 1990s to mid 2000s, the Limestone Coast Railway, operated tourist services on the abandoned lines from Mount Gambier to Penola, Coonawarra, Tantanoola, Millicent and Rennick with Redhen railcars.

A "back to nature" playground, wheelchair-accessible barbecues, a pond with a creek, native plants, a labyrinth, plus many more features for the community to use.

[12] Mount Gambier station was served from Adelaide by an overnight mixed train until October 1985 and then by a service using Bluebird railcars until December 1990.