Polygon features representing wetland areas in Chatham County, NC as defined by the National Wetland Inventory. This dataset was downloaded in July 2015 from the U.S. Fish and Wildlife Service website (http://www.fws.gov/wetlands/data/State-Downloads.html) and clipped out of the NC state wetland feature class using the Chatham County boundary. The clipped feature class was imported into the Chatham County enterprise GIS database for visual and analytical purposes in Chatham County mapping operations. The dataset is maintained by the Chatham County GIS department utilizing the source data from the U.S. Fish and Wildlife Service on an as needed basis.This data set represents the extent, approximate location and type of wetlands and deepwater habitats in the United States and its Territories. These data delineate the areal extent of wetlands and surface waters as defined by Cowardin et al. (1979). Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and near shore coastal waters. Some deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their depth, go undetected by aerial imagery. By policy, the Service also excludes certain types of "farmed wetlands" as may be defined by the Food Security Act or that do not coincide with the Cowardin et al. definition. Contact the Service's Regional Wetland Coordinator for additional information on what types of farmed wetlands are included on wetland maps. This dataset should be used in conjunction with the Wetlands Project Metadata layer, which contains project specific wetlands mapping procedures and information on dates, scales and emulsion of imagery used to map the wetlands within specific project boundaries.

Polygon features representing wetland areas in Chatham County, NC as defined by the National Wetland Inventory. This dataset was downloaded in July 2015 from the U.S. Fish and Wildlife Service website (http://www.fws.gov/wetlands/data/State-Downloads.html) and clipped out of the NC state wetland feature class using the Chatham County boundary. The clipped feature class was imported into the Chatham County enterprise GIS database for visual and analytical purposes in Chatham County mapping operations. The dataset is maintained by the Chatham County GIS department utilizing the source data from the U.S. Fish and Wildlife Service on an as needed basis.This data set represents the extent, approximate location and type of wetlands and deepwater habitats in the United States and its Territories. These data delineate the areal extent of wetlands and surface waters as defined by Cowardin et al. (1979). Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and near shore coastal waters. Some deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their depth, go undetected by aerial imagery. By policy, the Service also excludes certain types of "farmed wetlands" as may be defined by the Food Security Act or that do not coincide with the Cowardin et al. definition. Contact the Service's Regional Wetland Coordinator for additional information on what types of farmed wetlands are included on wetland maps. This dataset should be used in conjunction with the Wetlands Project Metadata layer, which contains project specific wetlands mapping procedures and information on dates, scales and emulsion of imagery used to map the wetlands within specific project boundaries.