Over a hundred Aboriginal sites have been recorded in the Hornsby region, with many of these in the Berowra Valley National Park and around the suburb of Berowra. The sites include engravings on sandstone ridges, rock shelters with cave paintings, open campsites and grinding grooves. The Aboriginal occupation of the Berowra Valley is thought to have been predominantly in the last 6,000 years (until European colonisation pushed them out), as the valley was deeper and steeper prior to the last ice age.

Aboriginal rock art including charcoal drawings and red ochre hand stencils in a long shelter below the old Pacific Highway
Grooved water channel and axe grinding grooves on a rock platform near the Pogson Trig Firetrail.
A signposted site next to Quarter Sessions Road has an Aboriginal engraving depicting a pair of leaping kangaroos.
One of the most spectacular Aboriginal rock art sites in Sydney's north, with red ochre and charcoal drawings across two adjacent shelters.
Very weathered site with an unusual feathered emu, as well as multiple kangaroos and axe grinding grooves
Washtub Gully near Berowra Waters has a number of Aboriginal engravings in a creek bed