Rock Flat is a rural locality in the Snowy Monaro Regional Council local government area of New South Wales, Australia. It is located south of Cooma, on either side of the Monaro Highway. The area now known as Rock Flat lies on the traditional lands of the Ngarigo people. Near the Monaro Highway crossing of Rock Flat Creek, there is a mineral spring that comes to the surface, on the bank of the creek. The spring water issues from near the base of a small rocky …