Question: Brown Hill Creek is part of the catchment of the river in the western suburbs of what Australian state?

Context paragraphs:
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.

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.

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.

Western Magpies Australian Football Club: The Western Magpies Australian Football Club is the senior Australian rules football club of the western suburbs of Brisbane which competes in Division One of the AFLQ State League.  The club is based at 41 Chelmer st, Chelmer, at the same grounds as the Sherwood Junior Australian Football Club and fields a team in the AFLQ senior, reserve, under 18 and women's grade competitions.  The Western Magpies AFC provides a focal point for talented players from all of the junior clubs that lie within Brisbane's western suburbs (Collingwood Park, Ferny Grove, Forest Lake, Kenmore, Jindalee, Moorooka, Sherwood, Southern Redbacks, Springfield Lakes, Wests Juniors, Yeronga).  The club aims to provide a pathway into the AFL for players from these junior clubs, develop the network of surrounding senior and junior Australian rules football clubs, and provide a fun, friendly, family oriented hub for local football in the western suburbs.  The Western Magpies Australian Football Club and Sherwood Junior Australian Football Club are sponsored by Tradelink (major sponsor), Hog's Breath Cafe and Cleanway (secondary sponsors).

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.

Sideling Hill Creek (Potomac River): Sideling Hill Creek is a 25.2 mi tributary stream of the Potomac River in the U.S. states of Maryland and Pennsylvania.  Sideling Hill Creek flows southward along the western flanks of Sideling Hill, from which the stream takes its name.  It forms the boundary between Allegany and Washington counties in Maryland.

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.

Crafers West, South Australia: Crafers West is a suburb of Adelaide in the Adelaide Hills Council.  It was formally named in 1985 as a separate address from Crafers.  Crafers West contains the headwaters of Brown Hill Creek and is dominated by steep terrain and native scrub.  It is bounded by Mount Barker Road on the northeast and the Bridgewater railway line on the south.  The Eagle Mountain Bike Park is in the north of the suburb.

Deep Creek (Melbourne): The Deep Creek is a watercourse of the Port Phillip catchment, located in the outer north western suburbs of Melbourne, in the Australian state of Victoria.

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