Blue Mountains at Katoomba: sandstone plateau and deep valleys

West of Sydney, the Blue Mountains rise around Katoomba as a high sandstone plateau cut by valleys and cliffs, with the Three Sisters standing above Jamison Valley.

West of Sydney in New South Wales, the Blue Mountains rise around Katoomba as a high sandstone plateau cut by deep valleys and sheer cliffs, with the Three Sisters rock formation standing above Jamison Valley as one of the most recognisable silhouettes in the range.

Sandstone tableland and World Heritage forest

The Blue Mountains form a sandstone tableland on the eastern edge of the Great Dividing Range, inland from Australia’s largest city, Sydney. The region takes its name from a distinctive blue haze over the landscape, produced by fine droplets of eucalyptus oil from the extensive forest that catch the light over the gorges and ridges.Greater Blue Mountains Area

This landscape is part of the Greater Blue Mountains Area, a natural World Heritage Site recognised for its sandstone plateaux, escarpments and gorges dominated by temperate eucalypt forest over more than a million hectares.Blue Mountains National Park Around Katoomba, the plateau falls sharply into valleys such as the Jamison and Megalong, their walls lined with cliffs and waterfalls that expose layers of sandstone and shale.

The Three Sisters above Jamison Valley

On the escarpment at Katoomba, the Three Sisters stand as a line of sandstone peaks separated from the main cliff by erosion over geological time. Each summit reaches well over 900 m (2,950 ft) above sea level, rising from the forested slopes of Jamison Valley below.The Three Sisters sandstone peaks The formation sits within an Aboriginal Place on Gundungurra and Darug Country, reflecting long-standing cultural stories linked to this part of the escarpment.Aboriginal Place at Three Sisters

Echo Point lookout occupies the edge of the plateau at Katoomba, directly opposite the Three Sisters and above Jamison Valley. From its terraces, the view takes in the three sandstone pillars, the wide valley floor, forested ridges and outliers such as Mount Solitary and Ruined Castle. Short walking tracks from Echo Point lead along the escarpment and towards the Three Sisters themselves, including paths that reach Honeymoon Bridge on the nearest peak.Echo Point lookout at Katoomba

Walking the cliffs and valleys around Katoomba

Blue Mountains National Park around Katoomba is threaded with walking tracks that follow the cliff edge or descend towards the valley floor. Routes such as the Three Sisters walk begin at Echo Point and pass through eucalypt forest to smaller lookouts and bridges, giving close views of the rock faces and the vegetation that clings to them.Three Sisters walk from Echo Point

Longer tracks around Katoomba follow the plateau rim or drop into the valleys, where creek lines, waterfalls and shaded gullies contrast with the exposed escarpments above.Guide to the Blue Mountains, NSW The mixture of cliff-edge viewpoints, forested slopes and deeply incised gorges gives this part of the Blue Mountains a varied terrain that reflects the underlying sandstone geology and the long erosion history of the range.

Visiting Blue Mountains: what travellers from Western Europe should know

• Blue Mountains National Park lies west of Sydney in New South Wales, with Katoomba as a principal town on the plateau and Echo Point lookout overlooking Jamison Valley.
• The escarpment edge at Katoomba falls steeply into Jamison Valley, and paths from Echo Point include sections with gradients, stairs and uneven surfaces, particularly on routes that descend from the plateau.
• The Blue Mountains form a highland area with weather that can change between the exposed plateaux and the sheltered valleys, and conditions vary between shaded forest gullies and open cliff-top lookouts.
• The official language is English and the currency is the Australian dollar.
• Entry requirements depend on your nationality; UK travellers can check the FCDO travel advice at gov.uk/foreign-travel-advice, Irish travellers the Department of Foreign Affairs at ireland.ie.

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Frequently asked questions about Blue Mountains

Where are the Blue Mountains and Katoomba located?

The Blue Mountains lie west of Sydney in New South Wales, Australia, with Katoomba on the sandstone plateau above valleys such as Jamison Valley.

What can visitors expect on a visit to Katoomba in the Blue Mountains?

Visitors encounter cliff-edge lookouts like Echo Point, views of the Three Sisters, eucalypt forest and walking tracks along the escarpment and into the valleys.

What makes the Blue Mountains at Katoomba distinctive?

The combination of high sandstone cliffs, deep valleys, extensive eucalypt forest and the prominent Three Sisters formation gives this part of the range a distinctive character.