The northern section of Mt Ku-ring-gai Chase National Park (Mt Ku-ring-gai to Brooklyn) has hundreds of Aboriginal art sites. They are both along Cowan Creek and the Hawkesbury River, and along the ridges which woud have been used used by the Aboriginal people as travel routes. A number of sites are along the Myall Trail, and the Mt Ku-ring-gai Aboriginal Site has some significant Aboriginal engravings.

A ritual or mythological Aboriginal engraving site along Shark Rock Ridge. The six figures include a man with large and distinct mouth.
Along the Shark Rock Ridge track is an Aboriginal engraving of a whale; the enormous figure is ten metres in length, with a goanna and whale inside the whale.
Shelter with a single Aboriginal charcoal drawing in Taffys Gully.
An Aboriginal engraving site on a low saddle along the track to Taffys Rock, which has two whales and a wallaby.
Recorded during a field survey conducted prior to the construction of the Sydney to Newcastle freeway through Cowan, this Aboriginal engraving site was determined as being of significant anthropological significance.