watershed_l_v2 <p>This collection is a legacy product that is no longer supported. It may not meet current government standards.</p> <p>A boundary line between watersheds, or a shoreline or international boundary.</p> <p>The North American Atlas &ndash; Basin Watersheds data set shows watersheds in North America at 1:10,000,000. &nbsp;A watershed is an area encompassing part or all of a surface drainage &nbsp;basin, a combination of drainage basins, or a distinct hydrologic feature.&nbsp; Watersheds are mapped in a hierarchical system, with the largest units encompassing the entire drainage areas of major rivers or river systems, or encompassing seaboard areas.&nbsp; Within&nbsp;these large units, subsequently smaller units encompass the drainage areas of smaller rivers and streams.&nbsp; Watersheds are classified differently in Canada, Mexico and the United States; the data set includes a continental classification (the North American Watershed, or NAW level), as well as the classification unique to each country.&nbsp; This data set was compiled from each country&rsquo;s watershed file and adjustments were made to the data to resolve misalignments and mismatches across international borders.&nbsp;</p> Boundaries Canada Countries Hydrography Inland waters Lakes Mexico Mid-latitude North America Northern Hemisphere Rivers United States of America Water Watercourses Western Hemisphere EPSG:4326 -180.0 180.0 0.854865068354537 83.63339199980706 text/xml