for the Clipsal 500 and horse racing events. Due to lobbying by local resident groups, the Adelaide Park Lands Preservation Association, the media and many residents of greater Adelaide, this plan was eventually rejected by the Adelaide City Council and subsequently no longer pursued by the South Australian Government. In December 2006 the state government passed the Adelaide Park Lands Act 2005, which established the Adelaide Park Lands Authority and a series of statutory protections for the Park Lands. At the time the Act was proclaimed, Premier Mike Rann announced that a major return of alienated Park Lands would be made at the western edge of the city. The area to be returned lies between Railway Terrace, Port Road and the railway lines. In 2011 Rann unveiled the plans for the return to Park Lands of 5.5 hectares of land at the west end of Park 25, occupied since 1879 by the Thebarton Water Depot. The land, which was treeless grasslands prior to European settlement, was developed and landscaped with more than 23,000 trees and shrubs as an urban forest. It features indigenous species, including native pine. In 2017–2018, land at the east end of Park 25 has been used by the South Australian Cricket Association for the development of the Karen Rolton Oval and associated facilities including car parking. Parks Although it is a single park, for management purposes the Adelaide City Council has used the last two digits of survey sections as labels to identify smaller areas within the Adelaide Park Lands. In some, but not all, cases, roadways crossing over the Park Lands coincide with the survey section boundaries that gave rise to council's numbering (from "Park 1" to "Park 29"). The numbering, which starts in the North Park Lands (at the Adelaide Golf Links), and increases clockwise around the perimeter, was applied in September 1882. Some of the parks are more commonly known by a commemorative name (e.g. Rymill Park), but others, such as Park 10, are still known mostly by their number. Dual naming Since the Adelaide City Council drew up a Reconciliation Vision Statement in 1997, they committed to a dual naming project, working with Kaurna Warra Pintyanthi, a Kaurna language project run by the University of Adelaide in collaboration with Kaurna advisors. The dual naming covers the city centre and North Adelaide, including the six public squares and Adelaide park lands. Erection of