headwaters

noun the source of a river; `the headwaters of the Nile`
Found on https://www.encyclo.co.uk/local/20974

headwaters

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 estim...
Found on http://www.encyclo.co.uk/local/20973

Headwaters

The area in the upper reaches of a watershed typified by unconfined surface water flows. Headwaters can coalesce to form rivulets or first order streams with distinct channels. Headwaters can often be ephemeral (wet only part of the year).
Found on http://www.americantrails.org/

Headwaters

The source, or upper part, of a stream. Often used in discussing water rights related to wilderness
Found on http://www.encyclo.co.uk/local/22399

Headwaters

Upper portion of stream's drainage system.
Found on http://www.physicalgeography.net/physgeoglos/h.html

Headwaters

upstream section of the river before the main tributaries join it; this section is typically much smaller in width and flow than the main section of the river.
Found on http://howtoflyfish.orvis.com/glossary/beginners-fly-fishing-glossary

Headwaters

upstream section of the river before the main tributaries join it. This section is typically much smaller in width and flow than the main section of the river.
Found on http://www.orvis.co.uk/intro.aspx?subject=201

Headwaters

upstream section of the river before the main tributaries join it. This section is typically much smaller in width and flow than the main section of the river.
Found on http://www.flyfisherpro.com/Public/Resources/GlossaryofFlyFishingTerms/inde

Headwaters

upstream section of the river before the main tributaries join it. This section is typically much smaller in width and flow than the main section of the river.
Found on http://www.hooked-on-flies.com/glossary.htm

headwaters

[n] - the source of a river
Found on http://www.webdictionary.co.uk/definition.php?query=headwaters
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