A long line of large round pits is visible as earthworks on aerial photographs of 1946. The pits are located just to the north of Lade, along a pre-existing path marked on the 1897 map of the area. They may have been the post-holes for a boundary fence, possibly relating to the PLUTO WWII military site to the north (Monument Number 1533740). The possible post holes are not visible on earlier photographs of 1942, and are therefore thought to relate to WWII military activity in the area. These features have been mapped from aerial photographs as part of the South East RCZAS NMP project.