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Watersheds of North America. A map of watersheds separated by the principal hydrological divides of North America. 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 ...
With an estimated population of 580 million and an area of 24,709,000 km 2 (9,540,000 mi 2), the northernmost of the two continents of the Western Hemisphere [1] is bounded by the Pacific Ocean on the west; the Atlantic Ocean on the east; the Caribbean Sea on the south; and the Arctic Ocean on the north. The northern half of North America is ...
Discovery of the Mississippi by De Soto A.D. 1541 by William Henry Powell depicts Hernando de Soto and Spanish Conquistadores seeing the Mississippi River for the first time. Map of the French settlements (blue) in North America in 1750, before the French and Indian War (1754 to 1763). c. 1681 map of Marquette and Jolliet's 1673 expedition.
The inland and intracoastal waterways of the eastern United States. The inland waterways of the United States include more than 25,000 mi (40,000 km) of navigable waters. Much of the commercially important waterways of the United States consist of the Mississippi River System —the Mississippi River and connecting waterways.
North America covers an area of about 24,709,000 square kilometres (9,540,198 sq mi), about 4.8% of the planet's surface or about 16.5% of its land area. As of July 2007, its population was estimated at nearly 524 million people. It is the third-largest continent in area, following Asia and Africa, and is fourth in population after Asia, Africa ...
Map showing the Upper and Lower Colorado River Basin, and adjacent areas supplied by Colorado River water. The Colorado River Basin consists of 246,000 square miles (640,000 km 2), making it the seventh largest drainage basin in North America. [2] About 238,600 square miles (618,000 km 2), or 97 percent of the basin, is in the United States. [40]
Before the river was created, large parts of North America were covered by water forming a saltwater lake about 200 miles across and 400 miles in length. The bedrock of the Ohio Valley was mostly set during this time. [21] The river formed on a piecemeal basis beginning between 2.5 and 3 million years ago.
The Pacific Northwest (PNW), sometimes referred to as Cascadia, is a geographic region in Western North America bounded by its coastal waters of the Pacific Ocean to the west and, loosely, by the Rocky Mountains to the east. Though no official boundary exists, the most common conception includes the U.S. states of Oregon, Washington, Idaho, and ...