Question: The Brown Hill Creek, also known as Willawilla in the Kaurna language, part of which river located in the western suburbs of the Adelaide metropolitan area, in the Australian state of South Australia

Context paragraphs:
Electoral district of Kaurna: Kaurna is an electoral district of the House of Assembly in the Australian state of South Australia.  Named after the Kaurna aboriginal tribe which originally inhabited the Adelaide plains, it is a 52.7 km² semi-urban electorate on Adelaide's far-southern beaches, taking in the suburbs of Aldinga Beach, Maslin Beach, Moana, Port Noarlunga, Port Noarlunga South, Port Willunga, Seaford, Seaford Meadows and Seaford Rise as well as parts of Aldinga and Christies Beach.  It is one of only two state districts named after South Australia's indigenous people (the other being the Electoral district of Narungga).

Brown Hill Creek, South Australia: Brown Hill Creek is a south-eastern suburb of Adelaide in the City of Mitcham in South Australia, named after the eponymous Brown Hill Creek.

Warriparinga: Warriparinga (meaning "Windy Place" in the local Kaurna language) is a nature reserve comprising 3.5 ha in the metropolitan suburb of Bedford Park, in the southern suburbs of Adelaide, South Australia.  It has historical, cultural and environmental significance as a traditional Kaurna ceremonial meeting place and as a site of early European settlement.  Also known as Fairford, Laffer's Triangle and the Sturt Triangle, Warriparinga is bordered by Marion Road, Sturt Road and South Road, and is traversed by the Sturt River as it exists from Sturt Gorge to travel west across the Adelaide Plains.

Brown Hill, Mitcham: Brown Hill is a hill in the Australian state of South Australia located on the western edge of the Mount Lofty Ranges, 7 km southeast of the centre of Adelaide, in the suburb of Brown Hill Creek.  Brown Hill rises to 312 m above sea level.

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.

Patawalonga River: The Patawalonga River is a river located in the western suburbs of the Adelaide metropolitan area, in the Australian state of South Australia.  It drains an area of flat, swampy lands formerly known as the Cowandilla Plains, which in the mid-20th century were drained by engineering works, enabling the establishment of Adelaide Airport and the development of residential housing.

Brownhill Creek Recreation Park: Brownhill Creek Recreation Park is a protected area located about 8 km south of the Adelaide city centre in City of Mitcham along part of the course of the Brown Hill Creek.  The recreation park was proclaimed under the "National Parks and Wildlife Act 1972" in 1972 to "provide recreation opportunities for the Adelaide and eastern metropolitan region and to conserve remnant aged river red gums and the riparian zone habitat".  The land previously subject to protected area status as a "National Pleasure Resort" since 1915.  The recreation park is classified as an IUCN Category III protected area.

Sturt River: The Sturt River, also known as the Sturt Creek and Warri Parri in the Kaurna language, is a river located in the Adelaide region of the Australian state of South Australia.

Electoral district of Waite: Waite is an electoral district of the House of Assembly in the Australian state of South Australia.  Named after Peter Waite, a 19th entrepreneur and philanthropist in the current area of the electorate, it is a 33.1 km² urban electorate in Adelaide's inner south-east, taking in the suburbs of Brown Hill Creek, Clapham, Hawthorn, Kingswood, Lower Mitcham, Lynton, Mitcham, Netherby, Panorama, Pasadena, Springfield, St Marys, Torrens Park, Urrbrae and Westbourne Park as well as parts of Belair, Colonel Light Gardens, Daw Park and Leawood Gardens.

Onkaparinga River: The Onkaparinga River, known as Ngangkiparri in the Kaurna language, is a river located in the Southern Adelaide region in the Australian state of South Australia.

Supporting paragraphs: Brown Hill Creek Patawalonga River
Answer: Patawalonga River