The Pirie–Torrens corridor is an approximately long intermittent watercourse that serves as the only natural outlet of Lake Torrens, a large normally endorheic salt lake in central South Australia.
Only on two recorded occasions — in 1836, and again in March 1989 — has Lake Torrens filled high enough to flow out through the corridor to its outlet at the head of the Spencer Gulf. The corridor likely flowed in 1897. John K. Warren (12 June 2006). Evaporites:Sediments, Resources and Hydrocarbons: Sediments, Resources, and Hydrocarbons. Springer Science & Business Media. p. 201. .
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