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 "Cleland Conservation Park"): Cleland Conservation Park is a protected area located in the Adelaide Hills, South Australia about 22 km south-east of the Adelaide city centre.
Relevant evidence: Yes