Columbia Basin - Wikipedia, the free encyclopedia
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The Columbia Basin , the drainage basin of the Columbia River, occupies a large area–about 673,396 square kilometres (260,000 square miles)—of the Pacific Northwest region of North America. In commo...
en.wikipedia.org/wiki/Columbia_Basin
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Geomorphologists and hydrologists often view streams as being part of drainage basins. A drainage basin is the topographic region from which a stream receives runoff, throughflow, and groundwater flow.
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www.physicalgeography.net/fundamentals/10aa.html
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Drainage Basin / Watershed ... Often, small drainage basins or watersheds combine with one another, creating larger and larger networks of drainage basins. All of these combined drainage basins are together referred to simply as a drainage basin, or as one watershed.
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www.kidsgeo.com/geology-for-kids/0076-drainage-basins-w...
www.kidsgeo.com/geology-for-kids/0076-drainage-basins-watersheds.php
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The Baltic Sea Region GIS, Maps and Statistical Database is a result of the Baltic Drainage Basin Project (BDBP), a multi-disciplinary research project under the EU 1991-1994 Environment Research Programme.
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A drainage basin (watershed) is a portion of the Earth surface occupied by a main stream and its tributaries separated from adjacent basins by a drainage divide.
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www.uwsp.edu/geo/faculty/ritter/glossary/a_d/drainage_b...
www.uwsp.edu/geo/faculty/ritter/glossary/a_d/drainage_basin.html
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Drainage systems develop in such a way as to efficiently move water off the land. Each stream in a drainage system drains a certain area, called a drainage basin. In a single drainage basin, all water falling in the basin drains into the same stream.
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www.tulane.edu/~sanelson/geol111/streams.htm
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