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<p><span style='background-color:rgb(255,255,255); color:rgb(74,74,74); font-family:"Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px;'><span style='display:inline !important; float:none; font-style:normal; font-variant-caps:normal; font-variant-ligatures:normal; font-weight:400; letter-spacing:normal; text-align:left; text-decoration-color:initial; text-decoration-style:initial; text-indent:0px; text-transform:none; word-spacing:0px;'>The U.S. Fish and Wildlife Service (USFWS) is the principal Federal agency that provides information to the public on the extent and status of the Nation’s wetlands. As of May of 2014, the National Wetlands Inventory (NWI) wetland geospatial data layer provides on-line map information for all of the conterminous U.S., Hawaii, Puerto Rico, the Virgin Islands, Guam, the major Northern Mariana Islands and 40% of Alaska. This was accomplished by working with numerous Federal, State, and Tribal agencies as well as various universities and non-governmental organizations. The NWI Program works with these entities to ensure all data meets the federal wetland mapping standard before it get's added into the national wetlands layer. Active mapping projects once completed and pass all NWI QAQC measures are added to the national data layer, and are posted the Wetlands Mapper.</span></span></p>
NWIWetlandsCowardinCowardin ClassificationFederalFish and Wildlife ServiceNational Wetlands Inventory
This hosted service represents the data source for currently National Wetland Inventory data symbolized by image year categories. These catagories include Modern, Intermediate, and Pre-Modern. These data were last updated in May of 2026.
<p><span style='color:#585858;'><font style='background-color:rgb(255, 255, 255); border:0px solid currentcolor; box-sizing:border-box; font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px; font-style:normal; font-variant-caps:normal; font-variant-ligatures:normal; font-weight:400; letter-spacing:normal; line-height:1.5; text-align:start; text-decoration-color:initial; text-decoration-style:initial; text-indent:0px; text-transform:none; word-spacing:0px;'>The United States Fish and Wildlife Service (Service) shall not be held liable for improper or incorrect use of the data described and/or contained herein. While the Service makes every reasonable effort to ensure the accuracy and completeness of data provided for distribution, it may not have the necessary accuracy or completeness required for every possible intended use. The Service recommends that data users consult the associated metadata record to understand the quality and possible limitations of the data. The Service creates metadata records in accordance with the standards endorsed by the Federal Geographic Data Committee.</font></span></p><div style='background-color:rgb(255, 255, 255); border:0px solid currentcolor; box-sizing:border-box; color:rgb(74, 74, 74); font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px; font-style:normal; font-variant-caps:normal; font-variant-ligatures:normal; font-weight:400; letter-spacing:normal; line-height:1.5; text-align:start; text-decoration-color:initial; text-decoration-style:initial; text-indent:0px; text-transform:none; word-spacing:0px;'><br /> </div><div style='background-color:rgb(255, 255, 255); border:0px solid currentcolor; box-sizing:border-box; color:rgb(74, 74, 74); font-family:"Avenir Next W01", "Avenir Next W00", "Avenir Next", Avenir, "Helvetica Neue", sans-serif; font-size:16px; font-style:normal; font-variant-caps:normal; font-variant-ligatures:normal; font-weight:400; letter-spacing:normal; line-height:1.5; text-align:start; text-decoration-color:initial; text-decoration-style:initial; text-indent:0px; text-transform:none; word-spacing:0px;'><span style='color:#585858;'><font style='border:0px solid currentcolor; box-sizing:border-box; font-family:inherit; line-height:1.5;'>As a result of the above considerations, the Service gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of the data. It is the responsibility of the data user to use the data in a manner consistent with the limitations of geospatial data in general and these data in particular. Although these data have been processed successfully on a computer system at the Service, no warranty, expressed or implied, is made regarding the utility of the data on another system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This applies to the use of the data both alone and in aggregate with other data and information.</font></span></div>
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