The Holsworthy Line is located in the south-west of Sydney. At the time of construction, this area was a restricted military area. This Army Reserve contained training areas, rifle ranges and an internment camp for Germans during WW1. In fact, the line was constructed using internee labour.
The section beyond Anzac Rifle Range fell into disrepair and from 1930 was put out of use. Several sidings were erected to the south-west of the rifle range; these sidings and the truncated line were known in later years as the Moorebank Line.
The Department of Defence still uses this area, although the line has now been lifted. A new suburb of Holsworthy was created nearby, but this is served by the extension to the East Hills Line.