Abstract: The discovery and investigation of Aboriginal stone house sites on the stony rises of the Western District (Fig. 1) has led to further surveys and research in similar areas elsewhere. Guided by references to stone structures in the literature (Kenyon 1912; Massola 1968; 1969) we have recently located hundreds of new sites. These comprise the remains of semi-circular stonewalled houses, cairns, free standing rock walls, stone-walled channels, and fishtraps and canals excavated into fractured and weathered basalt. These new sites are situated around the shore of Lake Condah, mainly along its eastern and southern margins (Figs. 2-4). A great deal of time has been spent mapping the structures, but to date there have been no exploratory excavations. The aim of the studies in the first instance is to understand how the sites functioned. In the second, it is to try to view these structures in the context of a generalised model of subsistence strategy for the area as a whole. This research is seen to be a logical extension of work carried out by Lourandos (1976) on the stone structures further south on the Darlot Creek, and Toolondo further north.