W.D. Campbell recorded and sketched about 250 Aboriginal rock art sites across Sydney across nine parishes (predominantly engraving sites). A number of the coastal and what are now inner-city sites have been lost to development and weathering, but many of the engravings are still in good condition.
A significant Aboriginal cultural site, the Moon Rock Aboriginal Site was declared an Aboriginal Place in 2016. The site has over 50 engravings, including tools and weapons used and to catch animals that were eaten in the area.