Is located in Hassans Glen after Gannon Cave and before King Georges Head. Named after Sir Joseph Cook (1860-1947) who settled in Lithgow and worked at the Vale of Clwydd Colliery. In 1891 he became the Local Member for Hartley, and later went on the serve the country as Prime Minister between 1913 and 1914. Re: Lithgow Mercury, 14th May 1915, p. 4.