1) Beginning 2) Lake Victoria 3) Origin 4) Root 5) Rootage 6) Source 7) Source of a stream 8) The source of a river 
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.
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).
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...
The source, or upper part, of a stream. Often used in discussing water rights related to wilderness
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.
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.
Upper portion of stream's drainage system.
[n] - the source of a river
the beginning of a river
noun the source of a river; `the headwaters of the Nile`
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.