Tower Hill is an inactive volcano on the south-west coast of Victoria, Australia. Within the crater, the explosion also formed a series of small cones (known as scoria cones) and spheres surrounded by a crater lake.Tower Hill volcano is roughly 4 km wide and 80 m high. It has a gradient altering between 10% to 80% at the higher points. The Koroitgundidj people long inhabited this region of Australia and have lived in the area of Tower Hill since before recorded history. The first confirmed sighting of Tower Hill by Europeans was by French explorers sailing with Captain Baudin aboard Géographe in 1802. Matthew Flinders sailed east along the southern coast of Australia and on 20 April 1802 in the ship's log referred to "Peaked Hill Position uncertain", which may refer to Tower Hill.
Now part of the state park system as the Tower Hill State Game Reserve, it previously saw service as a pasture for stock animals, fields for crop growing, a stone quarrying, an unofficial motorcycle racing venue, a source of free timber, and a convenient community rubbish dump. By the middle of the last century the hills were almost completely denuded and virtually the only wildlife to be found were waterfowl that came to the crater lakes. The area has been reforested with native flora, and repopulated with native fauna over the past 40 years.
More than 300,000 native trees have been planted over the past two generations. This has created an environment capable of sustaining native animals such as Koalas, Emus, kangaroos, Magpie Geese, Echidnas, possums, and waterbirds – all of which can be seen within the crater walls of Tower Hill. Small amounts of gold were found in tower hill lake, and had led to a few suspenseful searches.The towns in tower hill were set up because of this and have now become a tourist destination. The town of Koroit is on the North rim of Tower Hill which is within easy reach of both Warrnambool and Port Fairy.