Cadastral divisions of county, parish and township form the basis for formal identification of the location of any piece of land in the state.
Legal documents (such as grants, titles or transfers) that describe a particular parcel of land do so by reference to the county, parish, township (if there is one), section, crown allotment number, and certified plan number[3] — for example: "County of Dalhousie, Parish of Lauriston, being 2 hectares, being Crown Allotment 2, Section 40";[4] or "Parish of Ballarat, County of Grant, Crown Allotment 29, Section 101, Township of Ballarat East, as shown on Certified Plan No.
Following the unauthorised settlement of settlers from Tasmania (then called Van Diemen's Land) in the future Melbourne in 1835, in September 1836, Governor Bourke established the Port Phillip District of New South Wales.
The boundaries of the Port Phillip District were not settled until 1 July 1843, when a proclamation formalised the border as running from Cape Howe, to the nearest source of the Murray River, and then along the course of the Murray to the border with South Australia.
Earlier maps of Gippsland area in the eastern part of Victoria show proposed counties of Douro (a title of the Duke of Wellington), Bass, Haddington, Bruce, Abinger, Combermere and Howe with approximate boundaries.
Historical parish plans and maps produced between 1837 and 1986, the majority of which have been digitised, are available online from the State Library Victoria.