The Blue Mountains has a blue appearance, especially in the early morning.
Ask Roz AU Changed status to publish May 25, 2021
The Blue Mountains is densely populated by oil bearing Eucalyptus trees. The atmosphere is filled with finely dispersed droplets of oil, which, in combination with dust particles and water vapour, scatter short-wave length rays of light which are predominantly blue in colour.
Ask Roz AU Changed status to publish May 24, 2021