To assist the State Planning Office "examine and assess the future development of a defined area in the Mid-North of the State in anticipation of the area being declared a planning area under the provisions of the Planning and Development Act, 1966-1967" a summary of past, present and potential usage of minerals and rock products is made hereunder. The area under consideration comprises the district council areas of Port Germein, Orroroo, Peterborough, Hallett, Spalding, Jamestown, Laura, Gladstone, Georgetown, Redhill, Crystal Brook, Pirie, Snowtown, Blyth, Clare, Burra Burra, Robertstown, Eudunda, Saddleworth, Upper Wakefield, Riverton, Owen, Balaklava and Port Wakefield; the corporate towns of Peterborough, Jamestown, Burra and Clare and the City of Port Pirie.