Capital Hill (postcode: 2600) is the location of Parliament House, Canberra, at the south apex of the land axis of the Parliamentary Triangle.

The site was selected as the location of the Capitol in Walter Burley Griffin's Canberra design in 1912, which he envisaged to be "either a general administration structure for popular receptions and ceremony or for housing archives and commemorating Australian Achievements".

[3] In fact, in the 1958 and 1964 Holford plans for the Parliamentary Triangle, the site for the New Parliament House was moved to the lake shore, partly for this reason.

Holford also reportedly said that a lakeside site would discourage politicians from seeing themselves as superior to ordinary people.

Until the construction of the current Parliament House, the hill was covered with scrubby native bushland.

State Circle Shale is Late Llandovery in a more finely divided time scale and has been dated to 445.7 million years old.