Cape Londonderry is the northernmost point of mainland

Western Australia Western Australia (WA) is the westernmost state of Australia. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Aust ...

, as well as the southwestern corner of the

Timor Sea The Timor Sea (, , or ) is a relatively shallow sea in the Indian Ocean bounded to the north by the island of Timor with Timor-Leste to the north, Indonesia to the northwest, Arafura Sea to the east, and to the south by Australia. The Sunda Tr ...

. It lies east of Cape Talbot and northeast of Kalumburu (the nearest settlement), in Western Australia's

Kimberley Kimberly or Kimberley may refer to: Places and historical events Australia Queensland * Kimberley, Queensland, a coastal locality in the Shire of Douglas South Australia * County of Kimberley, a cadastral unit in South Australia Ta ...

region. The cape was surveyed by

Philip Parker King Phillip Parker King (13 December 1791 – 26 February 1856) was an early explorer of the Australian and Patagonian coasts. Early life and education King was born on Norfolk Island, to Philip Gidley King and Anna Josepha King ''née'' Coom ...

in 1818 and named after the

Marquess of Londonderry Marquess of Londonderry, of the County of Londonderry ( ), is a title in the Peerage of Ireland. History The title was created in 1816 for Robert Stewart, 1st Earl of Londonderry. He had earlier represented County Down in the Irish House of ...

, Britain's then Foreign Secretary. Plans to build an airstrip and fishing base there were approved by Western Australia's Environmental Protection Authority in 1992, but are yet to go ahead.

Notes

Coastline of Western Australia Kimberley (Western Australia) Extreme points of Western Australia {{WesternAustralia-geo-stub