Mount Hallen, Queensland
Mount Hallen is a rural locality in the Somerset Region, Queensland, Australia. In the , Mount Hallen had a population of 458 people. History. The former railway station in the area was originally called Buaraba in 1866 but was called Mount Hallen after the mountain from 1886 to 1941. The mountain was named in 1829 by explorer Allan Cunningham, probably after Ambrose Hallen, who was the Assistant Surveyor-General in New South Wales from 1827 to 1829. The locality takes its name from the railway station name.