The RFHP uses the EPA's aggregated Level III ecoregions derived from the Wadeable Streams Assessment. We are working to make a more interactive map available, but if you are unsure where your reservoir falls, please feel free to download the following GIS layers:

• Western Mountains
• Xeric
• Northern Plains
• Temperate Plains
• Southern Plains
• Northern Appalachian
• Southern Appalachian
• Coastal Plains
• Upper Midwest

We are working to upload these layers to our new GIS dashboard here, which allows you to search for your reservoir: https://arcg.is/1y5OyD2

EPA Wadeable Streams Assessment ecoregions

Interactive/Searchable Map