The Jamison Valley forms part of the Coxs River canyon system in the Blue Mountains of New South Wales

New South Wales

New South Wales is a state of :Australia, located in the east of the country. It is bordered by Queensland, Victoria and South Australia to the north, south and west respectively. To the east, the state is bordered by the Tasman Sea, which forms part of the Pacific Ocean. New South Wales...

, Australia

Australia

Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...

. It is situated approximately 100 kilometres west of Sydney, capital of New South Wales, and a few kilometres south of Katoomba, the main town in the Blue Mountains.
The Jamison Valley was named by Governor Lachlan Macquarie

Lachlan Macquarie

Major-General Lachlan Macquarie CB , was a British military officer and colonial administrator. He served as the last autocratic Governor of New South Wales, Australia from 1810 to 1821 and had a leading role in the social, economic and architectural development of the colony...

 in honour of Sir John Jamison

John Jamison

Sir John Jamison was an important Australian physician, pastoralist, banker, politician, constitutional reformer and public figure....

 (1776-1844), a prominent landowner and physician who visited the Blue Mountains with the governor in 1815.