The Grose River, a perennial river that is part of the Hawkesbury-Nepean catchment, the Nepean River, is a major perennial river, located in the south-west and west of Sydney, New South Wales, in which country?
Grose River: The Grose River, a perennial river that is part of the Hawkesbury-Nepean catchment, is located in the Blue Mountains region of New South Wales, Australia.
i don't know