Question: Brown Hill Creek is part of what river that drains an area of swampy lands formerly known as the Cowandilla Plains?
Sentence (from "Brown Hill Creek"): The Brown Hill Creek, also known as Willawilla in the Kaurna language, part of the Patawalonga River catchment, is a watercourse located in the western suburbs of the Adelaide metropolitan area, in the Australian state of South Australia.
Relevant evidence: Yes