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Katoomba | Blue mist over Jamison Valley

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Viewpoint near Katoomba, view towards south. This phenomenon - related to exhalations from Eucalyptus trees - is where the Blue Mountains get their name from. They represent a section of the Great Dividing Range. Essentially, the Blue Mountains consist in a large sandstone plateau with steep or even vertical escarpments leading down to deeply incised valleys and gorges. The Blue Mountains were declared a UNESCO World Heritage Site in 2000.