The natural resources (including land and water) of this planet are not inexhaustible, and therefore require continual management for them to remain sustainable. However, the demand imposed upon these resources is huge and increasing on a scale more than natural cycles can replenish. Thus the sustainability and the management of these resources are vital for the survival of all living things, including the human race. Management of these resources require knowledge and information about them. In Australia and worldwide the importance of updating regional land resource maps has come to the forefront of many government and non-government organizations (Bui and Moran, 2001). This is due to increased awareness of environmental impact of land use and the fact that land is an important component of the agro-ecosystems, which needs to be conserved for the future generations. Knowledge of land feature distribution over large areas has become increasingly more important for numerous scientific and policy purposes (Cihlar et al. 2000). Digital land feature mapping can thus greatly increase the ease of which needed soil and land information can be assessed and applied to land use planning and resource management