Sim documented hundreds of Aboriginal rock art sites across Sydney, many of them published in a series of articles in Mankind in the 1960s. A consolidated set of his recordings referred to as the “Sim Collection” are now held by AHIMS.
Three slabs of rock that were part of a larger Aboriginal engraving site, which were re-located to the St Ives Wildflower Garden during the construction of the F3 freeway.
The Wilton Shelter is a significant and spectacular Aboriginal rock art site in Sydney's south-west. The long shelter has over 60 motifs, all drawn in charcoal including two life-size kangaroos and a large anthropomorphic figures.