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Watersheds of North America are large drainage basins which drain to separate oceans, seas, gulfs, or endorheic basins. There are six generally recognized hydrological continental divides which divide the continent into seven principal drainage basins spanning three oceans ( Arctic , Atlantic and Pacific ) and one endorheic basin.
The newer delineation work on watersheds and subwatersheds was done using 1:24,000 scale maps and data. As a result, the subbasin boundaries were changed and adjusted in order to conform to the higher resolution watersheds within them. Changes to subbasin boundaries resulted in changes in area sizes.
The watershed has 294 miles (473 km) of roads, or 1.2 miles (2 kilometers) of road for every square mile of land. There are 119 miles (192 km) of roads in the watershed that are within 250 feet (76 m) of a stream; 48 percent of these are state forest or private roads , 26 percent are township roads , and 26 percent are owned by the state of ...
California water resource region. Cameron Run Watershed. Caribbean water resource region. Carson Desert. List of drainage basins in Colorado. Columbia River drainage basin. Croton River watershed.
Area. • Total. 720,000 km 2 (277,000 sq mi) The Atlantic seaboard watershed is a watershed of the Atlantic Ocean in eastern North America along the Atlantic Canada (Maritimes) coast south of the Gulf of Saint Lawrence Watershed, and the East Coast of the United States north of the Kissimmee River watershed of Lake Okeechobee basin in the ...
Streets Run is a 5.2-mile-long (8.4 km) [5] tributary of the Monongahela River in Allegheny County, Pennsylvania. This urban stream drains portions of the communities of Pittsburgh , Baldwin , Brentwood , West Mifflin and Whitehall , [ 6 ] an area of about ten square miles.
Aliso Creek is a 19.8-mile (31.9 km)-long, [2] mostly urban stream in south Orange County, California. Originating in the Cleveland National Forest in the Santa Ana Mountains, it flows generally southwest and empties into the Pacific Ocean at Laguna Beach. The creek's watershed drains 34.9 square miles (90 km 2), and it is joined by seven main ...
Watershed delineation is the process of identifying the boundary of a watershed, also referred to as a catchment, drainage basin, or river basin.It is an important step in many areas of environmental science, engineering, and management, for example to study flooding, aquatic habitat, or water pollution.