<P> The Blue Mountains are a mountainous region and a mountain range located in New South Wales , Australia . The region borders on Sydney 's metropolitan area , its foothills starting about 50 kilometres ( 31 mi ) west of the state capital . The public 's understanding of the extent of the Blue Mountains is varied , as it forms only part of an extensive mountainous area associated with the Great Dividing Range . Officially the Blue Mountains region is bounded by the Nepean and Hawkesbury rivers in the east , the Coxs River and Lake Burragorang to the west and south , and the Wolgan and Colo rivers to the north . Geologically , it is situated in the central parts of the Sydney Basin . </P>
<P> The Blue Mountains are a mountainous region and a mountain range located in New South Wales , Australia . The region borders on Sydney 's metropolitan area , its foothills starting about 50 kilometres ( 31 mi ) west of the state capital . The public 's understanding of the extent of the Blue Mountains is varied , as it forms only part of an extensive mountainous area associated with the Great Dividing Range . Officially the Blue Mountains region is bounded by the Nepean and Hawkesbury rivers in the east , the Coxs River and Lake Burragorang to the west and south , and the Wolgan and Colo rivers to the north . Geologically , it is situated in the central parts of the Sydney Basin . </P>
what mountain range is the blue mountains part of
what mountain range is the blue mountains part of
Great Dividing Range
Great Dividing Range