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Vertical cliffs

A sign at Echo Point explains how the sheer cliffs of the Blue Mountains were formed “Mountain streams have cut through the upper layers of sandstone, following vertical faults in the strata. The softer claystone layers are more erodible. As the softer rock is eroded, unsupported sections of the cliff collapse. This results in the characteristic vertical cliffs of the Blue Mountains.”

Cliff face viewed from Narrow Neck Road
where a landslide occurred in 1931

Words to Walk With:
From Australia by AD Hope
“A nation of trees, drab green and desolate grey
In the field uniform of modern wars
Darkens her hills, those endless, outstretched paws
Of Sphinx demolished or stone lions worn away”