Nillumbik Shire Council supports a range of volunteer-involving programs providing community and environmental services in the Shire. The Shire of Nillumbik is located less than 25 kilometres north-east of Melbourne, and has the Yarra River as its southern boundary. It extends 29 kilometres to Kinglake National Park in the north. The Shire stretches approximately 20 kilometres from the Plenty River and Yan Yean Road in the west to Christmas Hills and the Yarra escarpment in the east.