The National Park Service Vegetation Mapping Program objective is to produce consistent vegetation maps for approximately 270 park units. These maps and associated products must meet the following standards: use the hierarchical National Vegetation Classification (NVC) Standard; use a minimum mapping unit of 0.5 ha; use the UTM projection in NAD83 and GRS80 datum; and meet a thematic accuracy of 80%. For more information, visit the NPS I&M vegetation mapping websitehere.