Australia's National Carbon Accounting System Land Cover Change Program (NCAS-LCCP) has been developed over the past decade to provide fine-scale monitoring of forest land cover changes for the continent, and to estimate greenhouse gas (GHG) emissions from land use and land use changes. Time series Landsat coverages of the continent are processed to provide the monitoring component of the system. Forest extent and change products were the initial priority and have been routinely produced since 2002. Since then, a number of other monitoring products have been trialled and developed based on the NCAS-LCCP image archives, including the Woody Vegetation Trends described here. This product has been produced nationally within forested areas, providing indicators of changing forest density and degradation relevant to GHG accounting, and also to conservation and natural resource management.