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.

Two kangaroos on either side of a rock shelter; one with entrails coming out of its stomach
Boomerang on a long rock ledge below the Myall Trail.
First recorded by the 1st Hornsby Scout Group, this Aboriginal engraving site depicts a man and his pregnant wife.
A weathered Aboriginal engraving of two wallabies (or kangaroos) on a sloping rock platform
Below the Shark Rock Ridge in dense scrub is an Aboriginal engraving of a "protective deity, holding up a fish with the right hand"
An Aboriginal engraving site with an adult and young emu, on a small rock platform just above the Pacific Motorway.
One of several Aboriginal engraving sites along Shark Rock Ridge. It includes a large stingray, multiple fish, emus, kangaroos and kangaroo rats and a man (who may be hunting or fishing).
An Aboriginal engraving site along Shark Rock Ridge, which may represent "a hunting incident in the mythology or a totemic ritual". It has 14 figures, including two "koala bears" which resemble a Daramulan.
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.