Queen Mary Falls, Waterfall in Darling Downs, Australia

Queen Mary Falls is a waterfall located in the Darling Downs region, dropping over a basalt cliff in a single cascade. The falls sit within Main Range National Park in Queensland, surrounded by natural rock formations.

Queen Mary Falls formed on Spring Creek where water erosion cut gorges through layers of basalt and resistant trachyte on the McPherson Range. The falls are retreating: large blocks now at the base were not present in photographs taken in the 19th century.

The falls are reached by a short walk of about 150 metres from the road, which makes them a frequent stop for travellers on the Killarney route. Four other waterfalls lie near Killarney: Teviot Falls, Daggs Falls, Browns Falls and Upper Browns Falls. The name honours Queen Mary, though the sources record no origin story for it.

A sealed road leads to a parking area equipped with toilets, picnic tables, and barbecue facilities for visitors. The accessible layout makes it straightforward to plan and enjoy a day at the falls.

Spring Creek continues to reshape the falls, as shown by comparing old photographs from the 1800s with the landscape today. Large boulders at the base are now visible but were absent in those historical images, revealing how the water constantly moves rock.