The Derwent Valley Water Supply System is a crucial infrastructure project in Tasmania, Australia, designed to provide a reliable water supply to the region. It was constructed in the 19th century and includes a series of dams, reservoirs, and pipelines that transport water from the Derwent River to urban areas, particularly Hobart. This system is notable for its engineering and historical significance, featuring several key structures like the Gordon Dam and the Tarraleah Power Station. It plays a vital role in ensuring the availability of clean drinking water and supports local agriculture and industry.