The township of Walpeup sits on the crest of a relic Loxton-Parilla strandline, or beach dune, which formed more than 5 million years ago when the ocean was retreating from the Murray Basin.
The pit we’ve dug here is located on an east-west trending dune which is composed of sand and dust that has blown in across the landscape as these old strandlines eroded over the past three million or so years!