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  1. 3 lis 2022 · The National Map is a collection of free, nationally-consistent geographic datasets that describe the landscape of the United States and its territories. Included in The National Map are the latest elevation data from the 3D Elevation Program (3DEP) , surface water data from the National Hydrography Datasets (NHD) , and place name data from the ...

  2. Download our lakes and rivers map of the United States. It's free to use for any purpose. Or select from any of the 50 states for detailed lakes and rivers.

  3. 3 lis 2022 · The National Map is a collection of free, nationally-consistent geographic datasets that describe the landscape of the United States and its territories. Included in The National Map are the latest elevation data from the 3D Elevation Program (3DEP) , surface water data from the National Hydrography Datasets (NHD) , and place name data from the ...

  4. The U.S. Geological Survey's Streamer application allows users to explore where their surface water comes from and where it flows to. By clicking on any major stream or river, the user can trace it upstream to its source (s) or downstream to where it joins a larger river or empties into the ocean.

  5. Surface water, like rivers and lakes, as well as groundwater have flows that change all the time. The USGS maps and measures water to help understand the environment and how water moves through it. Maps are important tools in understanding water resources, conditions, and issues.

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  7. 6 wrz 2024 · A U.S. EPA report stated that 55% of U.S. rivers are in bad condition. View this beautiful interactive map for inspiration to protect these waterways.

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