The area of Ku-ring-gai National Park bounded by Terrey Hills, Duffys Forest and Cowan Creek hides many Aboriginal art sites. About half the sites are shelters along Cowan Creek, and the rest are engraving, cave art and grinding grooves along the many ridges and spurs.
The Big Man, Small Man Aboriginal engraving site has three male figures. The largest is over six metres high, and the smallest just over a metre.
- Number of motifs: 3
- Quality: 4.5/5
- Condition of art: Good
- Year first recorded: 1946
- Originally recorded by: R.H. Mathews, F.D. McCarthy
- View site sketch
A complex Aboriginal engraving site near Cotton Tree Creek. The figures include at least two whales and a man, as well over 40 axe grinding grooves.
- Number of motifs: 10
- Quality: 4/5
- Condition of art: Good
- Year first recorded: 1984
Above Cowan Creek a small and remote site with a carving of a striped bandicoot, and two spirit figures.
- Number of motifs: 3
- Quality: 5/5
- Condition of art: Good
- Year first recorded: 2017
Red ochre handprints and possible charcoal cave art in a small shelter below the Cowan Track.
- Number of motifs: 10
- Condition of art: Good
- Year first recorded: 1970
An Aboriginal engraving of a deity (Daramulan) figure near the Duckholes Trail.
- Number of motifs: 2
- Quality: 4/5
- Condition of art: Good
- Year first recorded: 1954
- Originally recorded by: F.D. McCarthy
- View site sketch
Aboriginal engravings of a large macropod and two smaller figures near the Duckholes Trail.
- Number of motifs: 3
- Quality: 3/5
- Condition of art: Good
- Year first recorded: 2021
- Originally recorded by: Bob Conroy
An Aboriginal engraving of a Daramulan figure in Duffys Forest.
- Number of motifs: 1
- Quality: 2.5/5
- Condition of art: Good, Weathered
- Year first recorded: 2022
Eight axe grinding grooves around a small pothole along a creek bed in Duffys Forest.
- Quality: 3/5
- Condition of art: Good
- Year first recorded: 2022
A single, isolated grinding groove along a mostly dry creek bed in Duffys Forest.
- Quality: 2/5
- Condition of art: Good
- Year first recorded: 2022
Two water holes along a creek in Duffys Forest, which have two grinding grooves and water channels.
- Quality: 2/5
- Condition of art: Good
- Year first recorded: 2022
A long shelter in Duffys Forest with Aboriginal rock art, including over ten hand stencils as well as charcoal drawings.
- Number of motifs: 18
- Quality: 3/5
- Condition of art: Good, Weathered
- Year first recorded: 2022
An intriguing Aboriginal site in Duffys Forest, which has a snake engraving, axe grinding grooves and a pecked channel.
- Number of motifs: 1
- Quality: 3.5/5
- Condition of art: Good
- Year first recorded: 2022
Three axe grinding grooves next to three water holes along a creek in Duffys Forest.
- Quality: 2.5/5
- Condition of art: Good
- Year first recorded: 2022
Arc in red ochre on the back of a large shelter, near the Harvey Trig Station.
- Number of motifs: 1
- Quality: 1/5
- Condition of art: Good
- Year first recorded: 1983
- Originally recorded by: Warren Bluff
- Number of motifs: 2
- Quality: 2/5
- Condition of art: Weathered
- Year first recorded: 2021