The Jamison Valley is a part of the Cox's River canyon system in the Blue Mountains of New South Wales, Australia. The cliffs surrounding the valley reach heights of up to 1000m. The valley floor is densely forested.
The Jamison Valley is part of the Blue Mountains National Park. The town of Katoomba is situated on cliffs overlooking the valley, and a very popular tourist attraction is the Three Sisters rock formation, on the edge of the valley.
