Extreme points of Australia

This is a list of the extreme points of Australia.

Australia (mainland)

Westernmost Point – Steep Point, Western Australia (113°09' E)
Easternmost Point – Cape Byron, New South Wales (153°38' E)
Lowest Point – Lake Eyre: -15 m
Highest Point – Mount Kosciuszko: 2,228 metres (7,310 ft)
Planimetric Center of Gravity - Lambert Centre (25° 36' 36.4" S 134° 21' 17.33" E)

Northernmost Point – Bramble Cay, northeast Torres Strait Islands, Queensland (9°8'23"S, 143°52'54"E)
Southernmost Point – Bishop and Clerk Islets, 34 km south of Macquarie Island, Tasmania. The southernmost point disregarding the subantarctic territories of Macquarie, Heard and McDonald Islands is Pedra Branca, a 2.5 hectare islet about 26 km (16 mi) south-south-east of South East Cape, Tasmania.
Westernmost Point – Flat Island, McDonald Islands.
Easternmost Point - Steels Point – easternmost point of Norfolk Island
Highest Point – Mawson Peak, Heard Island: 2,744 metres (9,003 ft)

State/territory	Northernmost point	Southernmost point	Easternmost point	Westernmost point
Australian Capital Territory				Mount Franklin Road
New South Wales	, NW of Coolangatta Airport	Cape Howe	Ball's Pyramid (Cape Byron is the easternmost point on the mainland)	Western border with South Australia
Northern Territory	northern tip of Oxley Island: Murri Point	southern border with South Australia	eastern border with Queensland	western border with Western Australia
Queensland	Bramble Cay, Torres Strait	Dumaresq River near Watsons Crossing	Boat Rock, off Point Lookout	western border with the Northern Territory
South Australia	northern border with the Northern Territory and Queensland	Cape Northumberland, on Discovery Bay	eastern border with Queensland and New South Wales	western border with Western Australia
Tasmania	Boundary Islet	Bishop and Clerk Islets, near Macquarie Island	Judge and Clerk Islets, near Macquarie Island	Diamond Rock, off New Year Island near King Island
Tasmania (excluding Macquarie Island)	Boundary Islet	Pedra Branca	Gull Rock, off Gull Island near Cape Barren	Diamond Rock, off New Year Island near King Island
Victoria	NW corner of the state	Boundary Islet	Cape Howe	Western border with South Australia
Western Australia (excluding Christmas Island)	Cape Londonderry	South West Island, near Eclipse Island	eastern border with South Australia and the Northern Territory	western tip of Dirk Hartog Island

State/territory	Highest point	Lowest point
Australian Capital Territory	Bimberi Peak (1,912 m)	Murrumbidgee River (429 m)
New South Wales	Mount Kosciuszko (2,228m)
Northern Territory	Mount Zeil (1,531 m)
Queensland	Mount Bartle Frere (1,622 m)
South Australia	Mount Woodroffe (1,435 m)	Lake Eyre (-16 m)
Tasmania	Mount Ossa (1,614 m)
Victoria	Mount Bogong (1,986 m)
Western Australia	Mount Meharry (1,249 m)	Lake Macleod (-4 m)