The original Hennepin County Wetland Inventory (HCWI) was developed from the remote sensing of multiple years of orthophotographyin combination with the analysis of related GIS layers and 10 years of Natural Resources Conservation Service slide reviews to identify and include farmed wetlands. The HCWI does not classify wetlands but merely locates them, whereas the USFWS National Wetlands Inventory (NWI) classifies wetlands based on the Cowardin methodology utilizing remotely gathered data and photo signature. For more information concerning detail on procedures followed to develop the HCWI contact Hennepin County Dept. of Environmental Services.Click here to read through the National Wetlands Inventory Metadata completed in Minnesota.Link to Attribute Table Information:https://gis.hennepin.us/OpenData/Metadata/Wetland%20Inventory.pdf