Original: The Western Desert can be said to stretch from the Nullarbor in the south to the Kimberley in the north, and from the Percival Lakes in the west through to the Pintupi lands in the Northern Territory.
Simplified: The Western Desert can be said to stretch from the Nullarbor in the south to the Kimberley region of Western Australia in the north, and from the Percival Lakes in the west through to the Pintupi lands in the Northern Territory.