Search results
Results from the WOW.Com Content Network
Each subregion includes the area drained by a river system, a reach of a river and its tributaries in that reach, a closed basin or basins, or a group of streams forming a coastal drainage area. [6] Regions receive a two-digit code. The following levels are designated by the addition of another two digits. [7]
The counterweight system of the shadoof is an early example of the engineering of river water. In pre-industrial society, rivers were a source of transportation and abundant resources. [19] [26] Many civilizations depended on what resources were local to them to survive.
List of longest rivers of the United States (by main stem) List of longest rivers of the United States by state; List of rivers of the United States by discharge; List of National Wild and Scenic Rivers; List of river borders of U.S. states; List of rivers of U.S. insular areas; List of rivers of the Americas by coastline
Dendritic drainage: the Yarlung Tsangpo River, Tibet, seen from space: snow cover has melted in the valley system. In geomorphology, drainage systems, also known as river systems, are the patterns formed by the streams, rivers, and lakes in a particular drainage basin. They are governed by the topography of land, whether a particular region is ...
Lists of rivers of the United States by state (1 C, 71 P) A. Rivers of Alabama (10 C, 89 P) Rivers of Alaska (5 C, 325 P) Rivers of Arizona (9 C, 86 P)
The boundaries between Kentucky and West Virginia and the three states to their north – Ohio, Indiana, and Illinois – is based on the historical northern bank of the Ohio River. [1] In 1763, Britain defeated France in the Seven Years' War , whose North American theater was called the French and Indian War .
Most navigable rivers and canals in the United States are in the eastern half of the country, where the terrain is flatter and the climate is wetter. The Mississippi River System is connected to the Illinois Waterway, which continues to the Great Lakes Waterway and then to the Saint Lawrence Seaway.
Since rivers often serve as political boundaries, confluences sometimes demarcate three abutting political entities, such as nations, states, or provinces, forming a tripoint. Various examples are found in the list below. A number of major cities, such as Chongqing, St. Louis, and Khartoum, arose at confluences; further examples appear in the list.