Rock Engravings are found on exposed, relatively flat sandstone surfaces.
The engravings may have been made by:
first drawing an outline
chipping holes along the outline using a stone tool
rubbing away the stone between the holes with another rock.
While many of the objects represented in the engavings can be recognised, the cultural meanings are not always understood.
Even though the images have been carved from stone they are fragile. Over time they will disappear as the rock surface erodes and the images will be lost for ever.
Rock Engravings
An image of a wallaby engraved on a rock platform in Ku-ring-gai Chase National Park.