This series consists of aerial photographs taken of what appears to be sites in South Australia and Northern Territory.

The photographs contain the following information at the bottom of the photograph: frame number, survey number, location, run number, range of frame numbers, date taken, focal length of camera, height above sea level and security classification.

It appears that the aerial photographs taken of areas have been taken over a period of time and are arranged in boxes or held loosely by location.

Some photographs contain typed written information in top right hand corner indicating the following information "Aust. Level B.M (Bench Mark)", File number with either an E,F,G prefix to a possible annual single and a L/number or two number/ followed by two further numbers. The purpose of this information is unknown.