It covers 668000 km 2 or 258000 sq mi. The drainage area for a river basin is measured in a horizontal plane.
Columbia River Drainage Basin Wikipedia
Use this interactive map to learn about the columbia river system including reservoir levels dams reservoirs and hydro generation.
Columbia river drainage basin map. By volume the columbia is the fourth largest river in north america. Interactive columbia river system map. The river itself flows from its headwaters in british columbia canada through only two states forming part of the.
The columbia basin province occupies the entire south central portion of the state. In its 1200 mile course to the ocean the river flows. Fascinating new map shows every river basin on the globe with.
It is a wide arid lowland area between the okanogan highlands the southern cascade range the idaho rockies and continues on through much of eastern oregon and northern nevada. To the east in northern wyoming and montana the continental divide separates the columbia watershed from the mississippi missouri watershed which empties into the gulf of mexico. The big fish in this much smaller pond is the columbia river drainage area in blue the largest river in the pacific northwest.
Map of the columbia river basin with dams highlighted. By drainage area it is the sixth largest river with a watershed that includes bc and seven states. Several major north american drainage basins and many minor ones share a common border with the columbia rivers drainage basin.
Home page washington state maps map of the columbia river basin with dams highlighted. The columbia river carved the interior columbia river basin from the landscape of seven western states and two canadian provinces. Washington oregon idaho montana wyoming utah and nevada.
A map of the columbia river watershed with the snake river highlighted in yellow and the columbia river highlighted in blue the columbia river basin covers 258000 square miles and includes parts of seven states and one canadian province. Interactive columbia river system map. Larger drainage basins like the areas that drains into the columbia river contain many smaller drainage basins often called watersheds.
It is a land feature that can be identified by tracing a line along the highest elevation between two areas on a map often a ridge. In common usage the term often refers to a smaller area generally the portion of the drainage basin that lies within eastern washington. The columbia river drainage basin is the drainage basin of the columbia river in the pacific northwest region of north america.
Map contains some large files data may take a few. Use the reset button to return to a map view of the columbia basin in canada. As most of the rivers water comes from melting snow its volume of water fluctuates seasonally.
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