Acton is a suburb of Canberra, ACT, Australia. Acton covers an area west of the CBD, bordered by Black Mountain to the west and Lake Burley Griffin in the south. The Australian National University campus covers most of the suburb, though also located in Acton is the National Film and Sound Archive, a branch of the CSIRO and the National Museum of …Acton is a suburb of Canberra, ACT, Australia. Acton covers an area west of the CBD, bordered by Black Mountain to the west and Lake Burley Griffin in the south. The Australian National University campus covers most of the suburb, though also located in Acton is the National Film and Sound Archive, a branch of the CSIRO and the National Museum of Australia.