FIELD GEOLOGY OF THE SHOALHAVEN DISTRICT (PART 14) Chapter 8. The Tomerong District In earlier days, when there were few casual visitors to the South Coast, Tomerong was much more a rural centre than it is today. The growth of holiday areas around Jervis Bay and St George’s Basin has rendered it less important. Tomerong is situated where the southern road first passes through the Nowra Sandstone onto the widespread Wandrawandian Siltstone. The change is marked by a noticeable improvement in the soil, and this in turn has led to the growth of spotted gums and turpentine, in contrast to the poorer types growing on sandstone soils. The sawmills around Tomerong and Wandandian capitalise on this forest wealth and provide local employment. North and west of Tomerong are outcrops of the overlying sandstone and the Berry Formation. Elsewhere, the Wandrawandian Siltstone is the dominant rock type, except along the shores of Jervis Bay, where a dome structure...