Question: The eastern terminus of Grand Junction Road is in the suburb of Hope Valley, at the intersection of Hancock Road and Lower North East Road, just before the latter proceeds into the Adelaide Hills, past a park managed by a what volunteer group? 
Sentence (from "Grand Junction Road"): Travelling from the Port Adelaide region, it is mostly a double-lane sealed road (becoming a single-lane road past Tolley Road intersection at Hope Valley, South Australia) running 21 kilometres to the base of the Adelaide Hills.
Relevant evidence: No