Lake Torrens Lake Torrens Lake Torrens is a normally ephemeral salt lake in central South Australia. After extreme rainfall events, the lake flows out through the Pirie-Torrens Corridor to the Spencer Gulf. Lake Torrens lies between the Arcoona Plateau to the west and the Flinders Ranges to the east, about north of Port Augusta and about north of the Adelaide city centre. The lake is approximately above sea level, with a maximum depth of 1 m. It is located within the boundaries of Lake Torrens National Park. Lake Torrens stretches approximately in length and in average width. It is Australia's second largest
River Torrens Park through which the creek flows. First, Second and Third Creeks have been particularly heavily modified. Some sections have been converted to concrete channels; others run through landscaped private gardens and some run in underground pipes. Much of the original vegetation has disappeared from the creeks, particularly those closest to the city. Introduced species including Olives, bamboo, boxthorn, watsonia and blackberries have displaced native flora. The largest catchment of the Torrens is Sixth Creek in the Adelaide Hills, which joins the Torrens at Castambul on Gorge Road. At the time of European settlement the river was a summertime chain of