This large crescent-shaped engraving is one of a number of engravings located on a large rock platform on the western side of Bulls Hill Quarry. This engraving partially resembles a boomerang, sword club or part of an echidna. Located on this same rock platform is an old camp fire and plenty of broken beer bottles - a ceremony of sorts!
In addition there is a series of engravings that combine naturally occurring water run-off grooves with indigenous engraved lines. Whilst not a common occurrence in this area there are some sites that have also been created in this way. An example of this technique is the 60 foot Whale recorded by W.D.Campbell (1899) that is located approximately 600 metres west of this site.
