The Archer Park Drill Hall (training depot) site was a Defence Force Reserve from 1901. During World War II the depot was used for recruiting and troop assembly for the nearby railway station. Surviving pre-World War II structures include the 1906 drill hall, a former drill hall and wagon shed relocated from Mount Morgan in 1928, and a rifle range and Q-Store. The former depot is located to the northeast of the Archer Park Railway Station [Queensland Heritage Registeropen_in_new 600777].

The 1906 timber drill hall fronts Archer Street, and is divided into three equal gable roofed sections with a transverse gable over the drill hall behind. The rifle range is located just northeast of the drill hall, and is approximately 25 metres long with a timber and earth wall (about 8m across by 4m high) at the northwest end.

The corrugated iron clad drill hall from Mount Morgan is located on the eastern side of the site. The former wagon shed from Mount Morgan, another corrugated iron-clad structure, is located just to the northwest. The former Q Store, located northwest of the wagon shed, is a red brick building with a hipped corrugated iron roof with a small windowed loft/attic in the centre.