Question: What is the name of a protected area located in the Adelaide Hills, South Australia which conserves a significant area of natural bushland and which forms a boundary to the east of Waterfall Gully near the foothills of the Mount Lofty Ranges?
Sentence (from "Waterfall Gully, South Australia"): It is located in the foothills of the Mount Lofty Ranges around 5 km east-south-east of the Adelaide city centre.
Relevant evidence: Yes