The Mitchell River silt jetties are an unusually long, thin landform located in the Gippsland Lakes

Gippsland Lakes

The Gippsland Lakes are a network of lakes, marshes and lagoons in east Gippsland, Victoria, Australia covering an area of about 600 km2. The largest of the lakes are Lake Wellington , Lake King and Lake Victoria. They are fed by the Avon, Thomson, Latrobe, Mitchell, Nicholson and Tambo...

 region in Victoria, Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

. A type of digitate delta

River delta

A delta is a landform that is formed at the mouth of a river where that river flows into an ocean, sea, estuary, lake, reservoir, flat arid area, or another river. Deltas are formed from the deposition of the sediment carried by the river as the flow leaves the mouth of the river...

, they have been formed over millions of years by sediment deposition from the Mitchell River

Mitchell River (Victoria)

The Mitchell River is the largest unregulated river in Victoria, Australia and provides a unique example of riparian ecology. Tributaries include the Crooked, Dargo, Wentworth, Wonnangatta, and Wongungarra Rivers, which are surrounded by dense native forest on the steep mountains of the Victorian...

during periods of low water flow and subsequent wash-through during periods of high water flow. The long narrow banks of silt thus formed extend more than eight kilometres east into Lake King. The south bank is navigable by car from Eagle Point through to the very easternmost tip at Point Dawson.