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Mt Augustus

World's Biggest Rock


Wildflowers near Mt Augustus

Wildflowers carpet the fields near Mt Augustus

Copyright 1997 Australian Tourist Commission

Mt Augustus, the world's largest rock, sits in the Golden Outback of Western Australia east of Carnarvon as much as 490 kilometres by road.

Mt Augustus is a Western Australia national park. It is a place of discovery and adventure.

How big is Mt Augustus?

It is two and a half times the size of the more popular Uluru, often described as the world's largest rock, in the Red Centre of Australia.

Mt Augustus covers an area of some 4800 hectares.

The difference between Uluru and Mt Augustus is that Uluru is a rock monolith consisting of a single rock while Mt Augustus is a monocline formed by a geological linear, strata dip in one direction between horizontal layers on each side.

Uluru is thus the largest rock monolith in the world and of monoliths and monoclines, Mt Augustus is the world's largest.

How high is Mt Augustus?

According to Western Australia's Department of Conservation and Land Management (CALM), Mt Augustus rises to a height of 717 metres above a stony, red sandplain. In a Sydney Morning Herald article in 2004 the height of Mt Augustus was said to be 858 metres above the surrounding plain and 1105 metres above sea level. Its central ridge is almost eight kilometres long.

How old is Mt Augustus?

The rock of the mountain is estimated to be 1000 million years old sitting on a granite rock said to be 1650 million years old.

The naming of Mt Augustus

Mt Augustus was named in honor of Sir Charles Gregory (1819-1905), brother of the explorer Francis Gregory who was the first to climb the mountain during an epic 107-day journey through the Gascoyne region of Western Australia.

The mountain is known as Burringurrah by the local Wadjari Aboriginal people.

Walking trails

There are a large number of walking trails around and up the mountain. Only the fit and experienced should attempt the walk to the top of Mt Augustus.

Get advice on the walking trails from Mt Augustus Outback Tourist Resort at the foot of the mountain.

Getting to Mt Augustus

Mt Augustus is some 850 kilometres from Perth.

From Carnarvon on the North West Coastal Highway, Mt Augustus is some 490 kilometres through Gascoyne Junction and 360 kilometres from Meekathara.

Roads are unsealed gravel and, while able to be used by conventional vehicles, the going can be slow and tough but certainly challenging for the adventurous. Some roads may be closed or damaged after heavy rain.

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