Lake Bolac's eastern lake-bed and beach during the 19987-2010 drought, looking south. The lake bank exposed in this photograph is an aboriginal midden about a likometer across excavated by Dr Peter Coutts in the 1970's. Radio carbon dates of charcoal from the base levels date the midden at 12,000 years old, making this one of two middens with this very early date, the other being on the coast near Warrnambool. lake bolac, aboriginal midden, dr peter coutts