Meaning of HEADWATERS

Pronunciation:			'hed`woturz
WordNet Dictionary
	Definition:		[n]  the source of a river; "the headwaters of the Nile"
	Websites:
	See Also:		beginning, origin, root, rootage, source
Biology Dictionary
	Definition:		Headwaters means non-tidal rivers, streams, and their lakes and impoundments, including adjacent wetlands, that are part of a surface tributary system to an interstate or navigable water of the U.S. upstream of the point on the river or stream at which the average annual flow is less than five cubic feet per second. The Corps of Engineers may estimate this point from available data by using the mean annual area precipitation, area drainage basin maps, and the average runoff coefficient, or by similar means. For streams that are dry for long periods of the year, the Corps may establish the point where headwaters begin as that point on the stream where a flow of five cubic feet per second is equaled or exceeded 50% of the time. A term used in reference to the origin of a river.
	Websites: