Yarra4Life’s program area encompasses 82,000 hectares of the Yarra Valley extending from the foothills of the Yarra Ranges to the north, Cardinia Reservoir in the south and flanked by the Dandenong Ranges and Bunyip State Park. The area contains significant biodiversity values on private land, public reserves and within state and national parks, with Yellingbo Nature Conservation Reserve located in the centre.