 Several early expeditions attempting to cross the Blue Mountains passed through the area at the end of the 18th century, and settlers settled in the lower Nattai and Burragorang Valleys in 1827.Early conservationists Myles Dunphy and Herb Gallop went on bushwalks in the region from 1912 onwards.An area held in high regard was a forest of Sydney blue gum around Blue Gum Creek.