Ultimo boundary marker Survey marker Boundary stone approximately 152 centimetres high which was erected on the eastern bank of Black Wattle Creek to delineate the boundary of Sydney Town. Locate -33.880637045955, 151.19650778173 Type Survey marker {"name":"Survey marker","target":"","target_text":null,"date":{"#markup":"<span class='date'><\/span>"},"date_start":null,"date_end":null}