This layer represents an attempt to use existing layers masked by a landuse layer to represent the native vegetation that, as of 2006, occured across the administration areas of the Central West Catchment Management Authority (CMA). It has been constructed using existing mapping from diverse sources that has been standardised to broad vegetation groups (BVTs) and merged. The merged layer was then used, with an associated abiotic layer, to "predict" the vegetation in areas where native vegetation was shown not to occur. This reconstructed layer was then masked by certain attributes from a landuse layer to give the 2006 extent of the BVTs.