It is located on the main Port Pirie to Broken Hill railway, with branches going north and south.
Originally, all the lines were 3' 6" narrow gauge. In 1927, the line south of Gladstone to Hamley Bridge was converted to 5' 3" broad gauge, making Gladstone a break-of-gauge junction.
In 1970, the line from Port Pirie to Broken Hill was converted to 4' 8½" standard gauge making Gladstone into a rare 3 gauge junction. In the 1980s, the broad and narrow gauge lines were closed, leaving Gladstone as a purely standard gauge station.
The Gladstone community has grown dramatically from a "sleepy hollow" township to a major industrial city in less than 20 years, yet has retained the charm of a coastal resort setting with an enviable lifestyle.
To the south of the city lie the shires of Calliope and Miriam Vale.
Gladstone is a harbour city which has captured both the enthusiasm of its citizens and the attention of the world.