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19 Φεβ 2020 · This United States Geological Survey web map displays the National Watershed Boundary Dataset. Web Map by esri_basemaps
Explore the interactive map of US Watersheds (HUC 8) with ArcGIS, providing detailed watershed boundaries and data.
10 Απρ 2019 · A detailed map of watersheds in the continental United States, showing the 2-digit hydrologic units. Learn more about watersheds, drainage basins, lakes, and the water cycle from the USGS.
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8 Ιουν 2019 · Watersheds can be as small as a footprint or large enough to encompass all the land that drains water into rivers that drain into Chesapeake Bay, where it enters the Atlantic Ocean. This map shows one set of watershed boundaries in the continental United States; these are known as National hydrologic units (watersheds).
Explore water data from over 1.5 million sites across the country using the U.S. Geological Survey’s National Water Information System. The map shows surface water, groundwater, springs, atmospheric, and other sites, as well as watershed boundaries, aquifers, and USGS offices.
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. Maps allow people to visualize spatial data and understand how the environment may affect their lives.
