The National Wetlands Inventory data set represents wetland and surface water areas nationwide. The classification system is based on Cowardin et al. (1979). This data does not represent jurisdictional wetlands.
USFWS staff and contractors map wetlands by photo-interpreting aerial photography. The dates of the source aerial photography and map scale of the photos varies dramatically across the state. The earliest mapping was done in the early 1970s using 1972 color-infrared photos at a scale of 1:80,000. Updates are still being made to NWI, although the coverage varies. Generally speaking, south Florida, coastal west central Florida, coastal east central Florida, and the panhandle are the most up to date areas. Please refer to a status map to know the source imagery for your particular location of interest.
This version of the data covers Florida and Georgia.
According to USFWS:
The present goal of the Service is to provide the citizens of the United States and its Trust Territories with current geospatially referenced information on the status, extent, characteristics and functions of wetlands, riparian, deepwater and related aquatic habitats in priority areas to promote the understanding and conservation of these resources. (USFWS metadata).
12/01/2022
US Fish and Wildlife Service
MapWise
wetland, swamp, hydrography, national wetlands inventory, NWI
Florida
1:24,000
+/- 40 feet or more, depending on source imagery and data date for a particular area.
SHP
Polygon
Albers Florida HARN
| Field | Description | Type |
|---|---|---|
| ATTRIBUTE | Alphanumeric code identifying the wetland classification of the polygon. http://www.fws.gov/wetlands/Data/Wetland-Codes.html | String (20.0) |
| WETLAND_TY | General description of the wetland based on the Cowardin wetland classification. | String (50.0) |
| SYSTEM | System code. Highest level of classification hierarchy. | String (1.0) |
| SYSTEM_D | System code description | String (12.0) |
| SUBSYSTEM | Subsystem code | String (1.0) |
| SUBSYS_D | Subsystem code description | String (20.0) |
| CLASS1 | Class code | String (2.0) |
| CLASS1_D | Class code description | String (30.0) |
| SUBCLASS1 | Subclass code | String (1.0) |
| SUBCL1_D | Subclass code description | String (30.0) |
| CLASS2 | Class2 code | String (2.0) |
| CLASS2_D | Class2 code description | String (30.0) |
| SUBCLASS2 | Subclass2 code | String (1.0) |
| SUBCL2_D | Subclass2 code description | String (30.0) |
| WATER1 | Water code | String (1.0) |
| WATER1_D | Water code description | String (36.0) |
| WATER2 | Water2 code | String (1.0) |
| WATER2_D | Water2 code description | String (36.0) |
| CHEMISTRY1 | Water chemistry code | String (1.0) |
| CHEMIST1_D | Water chemistry code description | String (22.0) |
| CHEMISTRY2 | Water chemistry2 code | String (1.0) |
| CHEMIST2_D | Water chemistry2 code description | String (22.0) |
| SOIL | Soil type code | String (1.0) |
| SOIL_D | Soil type code description (either ORGANIC or MINERAL) | String (8.0) |
| SPECIAL1 | Special feature code | String (1.0) |
| SPECIAL1_D | Special feature code description | String (26.0) |
| SPECIAL2 | Special feature2 code | String (1.0) |
| SPECIAL2_D | Special feature2 code description | String (26.0) |
SYSTEM Field:
| Code | Description |
|---|---|
| E | Estuarine |
| L | Lacustrine |
| M | Marine |
| P | Palustrine |
| R | Riverine |
WETLAND_TY Field:
| Code | Description |
|---|---|
| ESTUARINE AND MARINE DEEPWATER | Open water estuary, bay, sound, open ocean. Estuarine and Marine subtidal water (E1, M1). |
| ESTUARINE AND MARINE WETLAND | Vegetated and non-vegetated brackish and saltwater marsh, shrubs, beach, bar, shoal or flat. Estuarine intertidal and Marine intertidal wetland (E2, M2). |
| FRESHWATER EMERGENT WETLAND | Herbaceous marsh, fen, swale and wet meadow. Palustrine emergent (PEM). |
| FRESHWATER FORESTED/SHRUB WETLAND | Forested swamp or wetland shrub bog or wetland. Palustrine forested and/or Palustrine shrub (PFO, PSS). |
| FRESHWATER POND | Pond. Palustrine unconsolidated bottom, Palustrine aquatic bed (PUB, PAB). |
| LAKE | Lake or reservoir basin. Lacustrine wetland and deepwater (L). |
| OTHER | Farmed wetland, saline seep and other miscellaneous wetland. Palustrine wetland (Misc. types, PUS, Pf..) |
| RIVERINE | River or stream channel. Riverine wetland and deepwater (R). |