Increase in gold reserves of the Manna Hill Goldfield was not substantiated. Exploration included study of all old mines and prospects, detailed geological mapping and photogeology. Stratigraphic or structural extensions or repeats were not located. Field testing of geochemical methods including stream sediment, soil and rock chip sampling and magnetic concentrates over Westward Ho and Homeward Bound lines of lode were unsuccessful. However, a model for the formation of the deposits was developed. It is inferred that a precursor stromatolitic dolomite bed within the Enorama Shale, developed structurally induced permeability during folding. Fluids emanating from the Teetulpa Fracture Zone initially silicified the unit and subsequently introduced the gold mineralization with concurrent recrystallization of the earlier replacive quartz. Evaluation of Newmont Pty Ltd drilling data at the Westward Ho line, gave an inferred reserve of 1.7 M tonnes Au.