Maroondah Dam is a significant water supply reservoir located in Victoria, Australia. It was constructed in the 1920s and is situated in the Yarra Valley, approximately 50 kilometers east of Melbourne. The dam is primarily used to store water for the surrounding communities and supports local ecosystems. The dam has a capacity of about 30,000 megaliters and is surrounded by scenic parklands, making it a popular spot for recreational activities such as walking and picnicking. It plays a crucial role in managing water resources for the region, ensuring a reliable supply for both urban and agricultural needs.