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