O'Halloran Hill, South Australia

Glenthorne National Park–Ityamaiitpinna Yarta is a national park in the southern Adelaide suburb of O'Halloran Hill, 16 km (9.9 mi) south of the city centre. The park opened to the public in November 2020, and as of 2021 O'Halloran Hill Recreation Park is in the process of transitioning to become part of it. It includes the nearby Glenthorne Estate, and will connect with other parks and parcels of land in Adelaide's south to form the Glenthorne Precinct. These include Hallett Cove Conservation Park, Marino Conservation Park, areas of the Field River Valley and the Happy Valley Reservoir.The Kaurna people are the traditional owners of the greater Adelaide region, including this area, and still maintain a deep relationship with Country, which they have done for tens of thousands of years through their customs and Tjukurpa. Tjukurpa, which includes cultural stories and lore, will profoundly influence the way the Glenthorne National Park-Ityamaiitpinna Yarta is managed.The park includes important greybox (a type of eucalypt grassy woodland, and more than 90 species of birds have been spotted within its boundaries, including: Adelaide rosella - Platycercusadelaidae Grey fantail - Rhipidura albiscapa Kookaburra - Dacelo novaeguineae Willie wagtail - Rhipidura leucophrys Yellow-tailed black cockatoo - Calyptorhynchus funereus Yellow-faced honeyeater - Lichenostomus chrysops

Trott Park is a suburb in the south of Adelaide, South Australia. It has a population of 3,503 people (2016 Census). It is surrounded in most part by open space: the O'Halloran Hill Recreation Park, and Roseworthy Park, a former CSIRO landhold. It is also bordered by Sheidow Park, Hallett Cove and O'Halloran Hill. The Onkaparinga TAFE and Southern Expressway are situated close to the suburb. The Coast to Vines rail trail passes through the suburb. Trott Park is in the City of Marion local government area, the South Australian House of Assembly electoral district of Black and the Australian House of Representatives Division of Kingston.

Happy Valley is a closed railway station in Adelaide, South Australia. It was a ground level stopping place during the passenger transport days of this line, and a 1965 reference mentioned that it was no longer used at that date. A road bridge, carrying South Road on a diversion by-passing Reynella, crossed the line shortly after Happy Valley. The stop is now completely destroyed, the entire Willunga railway line having been dismantled in 1972, and the site is now the location of the Panalatinga Road interchange of the Southern Expressway and Main South Road.

O'Halloran Hill Recreation Park is a protected area located about 16 kilometres (9.9 miles) south of the Adelaide city centre in the suburbs of Seaview Downs and O’Halloran Hill. As of December 2021 it is in the process of becoming part of the new Glenthorne National Park–Ityamaiitpinna Yarta.

Mitchell is a former electoral district of the House of Assembly in the state of South Australia. It was first created in the redistribution of 1969, taking effect at the 1970 election. Mitchell was replaced by Black at the 2018 election, resulting from the 2016 electoral redistribution.Mitchell was named after philosopher Sir William Mitchell. Mitchell was located in inner-south western Adelaide, and covered 26.8 square kilometres (10.3 sq mi) and encompassed the suburbs of Dover Gardens, Old Reynella, Reynella, Seacombe Gardens, Seacombe Heights, Seaview Downs, Sheidow Park, Sturt and Trott Park and parts of Darlington, O'Halloran Hill, Oaklands Park and Warradale. The suburbs contained within the seat in 2010 were completely different as recently as 1989. The 1989 seat centred on Park Holme, north-east of the current incarnation of Mitchell, where much of the seat of Elder is. The 1989 boundary bordered the 2010 boundary in the south-west and north-east respectively. Mitchell tended to be a marginal Labor-held seat. While Colin Caudell succeeded in winning the seat for the Liberal Party for the first time at the 1993 election, he was narrowly defeated by Kris Hanna at the 1997 election. Hanna markedly increased his majority at the 2002 election, but defected to the SA Greens in 2003. He subsequently left the Greens in February 2006, and won his seat at the 2006 election narrowly as an independent candidate on a 50.6 two-candidate vote, though Labor got a 65.2 percent two-party vote against the Liberals. Hanna failed in his attempts to retain the seat at the 2010 election, losing to Labor candidate Alan Sibbons. Hanna unsuccessfully contested the seat at the 2014 election. Liberal Corey Wingard won the seat with a 51.2 percent two-party vote which made it the most marginal seat in parliament. It was the first time Labor was in government with the Liberals winning Mitchell. At the 2018 state election, Wingard chose to contest the seat of Gibson, and was successful; and the seat of Black was won by David Speirs, the former member for Bright; both members of the Liberal Party.

The Happy Valley Reservoir is a water reservoir located in the southern Adelaide suburb of Happy Valley, South Australia. Constructed when the total population of Adelaide numbered 315,200 (1893 census), the Happy Valley Reservoir now supplies over a half a million people, from Adelaide's southern extent to the city centre. The surrounding area is home to much wildlife, including many Kangaroos.

Reynella East is a metropolitan suburb of Adelaide, South Australia. It lies within the City of Onkaparinga and has postcode 5161. It is one of the smallest suburbs in South Australia.

Happy Valley is a metropolitan suburb of Adelaide, South Australia. It is located 20 km south of the Central Business District of Adelaide. Within the suburb is the Happy Valley Reservoir accompanied by South Australia's largest water treatment plant, responsible for supplying water to much of the Adelaide metropolitan area. Although it is now encompassed by suburbs, it still retains a relatively semi-rural character due to retention of native flora and vegetation surrounding the Happy Valley Reservoir, as well as parklands and golf courses along its border.

Sheidow Park is a suburb in the south of Adelaide, South Australia. The suburb is approximately 22 kilometres (14 mi) from the city-centre and is situated on coastal hills above the Adelaide Plains. The size of Sheidow Park is approximately 3.5 square kilometres. It has 9 parks covering nearly 6.1% of total area. The predominant age group in Sheidow Park is 0–9 years. Households in Sheidow Park are primarily couples with children. In general, people in Sheidow Park work in a professional occupation.

Black is a single-member electoral district for the South Australian House of Assembly. It was created by the redistribution conducted in 2016, and was contested for the first time at the 2018 state election.Black is named after Dorrit Black (Dorothea Foster Black, 1891–1951), a South Australian modern artist, best known for linocuts, oil and watercolour paintings.Black lies south-west of the Adelaide city centre and includes the suburbs of Darlington, Hallett Cove, Kingston Park, Marino, O'Halloran Hill, Seacliff, Seacliff Park, Seacombe Heights, Seaview Downs, Sheidow Park and Trott Park. At its creation, Black was projected to be notionally held by the Liberal Party with a swing of 2.6% required to lose it.: Appendix 12  The 2018 creation of Black replaced the electorate of Mitchell that was disestablished at the 2018 state election. Black does not extend as far north or south as Mitchell did, but extends west to the coast through part of what used to be Bright.

Reynella East College (REC), formerly Reynella East Primary & Reynella East High, is a public school for students from Reception to Year 12, located on Malbeck Drive in the southern Adelaide suburb of Reynella East, South Australia. Reynella East College was opened in 2011 after the formal closure of Reynella East Primary and Reynella East High. The Primary section first opened in 1979 (43 years ago), while the High School section opened in 1981 (41 years ago).

St Martin de Porres is a Catholic School parish school in Sheidow Park, Adelaide, South Australia catering for children from Reception to Year 6. It is a feeder school to Sacred Heart College School, and Cabra Dominican College.