STEP has published a new book, Rocks and Trees. It's the perfect way to learn about the geology that underpins the landscape and diverse flora of the Sydney region.

Discover the relationship between the geology and the plants that grow there. The book journeys from the Illawarra along the coast to Newcastle and inland to the Greater Blue Mountains, staying within the framework created by the massive sandstones and conglomerates of the Triassic Narrabeen Group.