the planning of the grounds and the association with the Botanic Gardens in the layout and selection of species is of considerable note. The Manor, which is constructed in stone and finished internally to a very high standard, is complemented by four near contemporary stone workmen's family cottages and a 1920s brick resident officer's residence which are equally designed and finished to a high quality. The dam is set within the valley of the Cataract River: upstream of the dam wall there is a substantial area of native bushland characterised by the broad expanse of the pool of water bordered by the crests of the valley sides and Keele Island. Downstream of the dam wall the setting is characterised by the steeper inclines that graduate into the gorge created by the river's flow over time. The topography in times of high water level imparts a picturesque scene viewed from selective vantage points above and on the dam wall. The adjoining hill of approach to the dam is laid-out with a plantation of Monterey Pines, which in juxtaposition with the paths, drives, culverts, steps and cottages impart a parklike setting. The place has a strong or special association with a particular community or cultural group in New South Wales for social, cultural or spiritual reasons. The dam and grounds are recognised by the National Trust of Australia (NSW) as being a place which is part of the cultural environment of Australia, which has aesthetic, historical, architectural, archaeological, scientific and social significance for future generations, as well as for the present community of NSW. The dam and grounds are recognised by the Heritage Council of NSW as a place which is of significance to NSW in relation to its historical, scientific, cultural, social, archeological, natural and aesthetic values. The dam wall is recognised as an engineering feat of national significance by the Institute of the Engineers of Australia. The place has potential to yield information that will contribute to an understanding of the cultural or natural history of New South Wales. The grounds of the dam contain a yard of valves removed from Cataract and Woronora Dams, and items of plant and machinery used during the construction and maintenance of the Upper Canal. The hillside overlooking the dam was the site of the original construction village and retains steps and engravings cut within the rock outcrops dating from this era. The cyclopean