Queensland State Archives posted a photo:
Throughout its life, Fort Lytton was a major training base. Thousands of soldiers trained at Fort Lytton for the Boer War, World War I and World War II. For its first forty years the fort was also the main training base for Queensland’s reserve soldiers. Each year up to 5000 reservists attended training at Fort Lytton’s “Easter Encampment”.
Even after its career as a military outpost, Fort Lytton continued to play a key part in Australian defence. Over 17,000 Australians served in the Korean War between 1950 and 1953. Fort Lytton’s signal station provided essential communications between Australia and its forces in Korea. The signal station was significantly upgraded at this stage, including upgrades to radio equipment, masts and aerials (antennas).
Description source:
Wikipedia
View the original record at the Queensland State Archives:
Item ID 2692229

