This list embraces topographical watersheds and drainage basins and other topics focused on them.

Terms – different uses

*The

source Source may refer to: Research * Historical document * Historical source * Source (intelligence) or sub source, typically a confidential provider of non open-source intelligence * Source (journalism), a person, publication, publishing institute ...

of a river or stream is the furthest place from its estuary or confluence with another river, and is alternatively known as a "watershed" and/or "headwaters" in some countries. *The

confluence In geography, a confluence (also ''conflux'') occurs where two or more watercourses join to form a single channel (geography), channel. A confluence can occur in several configurations: at the point where a tributary joins a larger river (main ...

is the meeting of two rivers or streams, and may sometimes be known as "headwaters". *A

drainage basin A drainage basin is an area of land in which all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, ...

is an area of land where all surface water converges to a single point at a lower elevation. In North America, "watershed" is used for this sense, while elsewhere terms like "catchment" or "drainage area" are used. *A

drainage divide A drainage divide, water divide, ridgeline, watershed, water parting or height of land is elevated terrain that separates neighboring drainage basins. On rugged land, the divide lies along topographical ridges, and may be in the form of a single ...

is the line that separates neighboring drainage basins. In English-speaking countries outside of North America, this is normally known as a "watershed".

Drainage divides

Drainage divides Drainage is the natural or artificial removal of a surface's water and sub-surface water from an area with excess water. The internal drainage of most agricultural soils can prevent severe waterlogging (anaerobic conditions that harm root gro ...

category *The European Watershed, the line dividing the drainage basins of the major rivers of Europe *The

Drainage divide A drainage divide, water divide, ridgeline, watershed, water parting or height of land is elevated terrain that separates neighboring drainage basins. On rugged land, the divide lies along topographical ridges, and may be in the form of a single ...

s, the lines dividing

s in North America (i.e.:

Great Basin Divide The Great Basin Divide in the western United States is the ridgeline that separates the Great Basin from the Pacific Ocean watershed, which completely surrounds it. The Great Basin is the largest set of contiguous endorheic watersheds of No ...

and Great Basin hydrologic region)

Watersheds and drainage basins

Basins Basin may refer to: Geography and geology * Depression (geology) ** Back-arc basin, a submarine feature associated with island arcs and subduction zones ** Debris basin, designed to prevent damage from debris flow ** Drainage basin (hydrology), ...

category *

Drainage basins A drainage basin is an area of land in which all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, th ...

category * List of drainage basins by area: A worldwide list of watersheds *

Drainage basins of the Atlantic Ocean Drainage is the natural or artificial removal of a surface's water and sub-surface water from an area with excess water. The internal drainage of most agricultural soils can prevent severe waterlogging (anaerobic conditions that harm root gro ...

category * Drainage basins of the Arctic Ocean category

Watersheds - basins by country

Watersheds of Canada Watershed may refer to: Hydrology * Drainage divide, the line that separates neighbouring drainage basins * Drainage basin, an area of land where surface water converges (North American usage) Music * Watershed Music Festival, an annual country ...

category *

Watersheds of the United States Watershed may refer to: Hydrology * Drainage divide, the line that separates neighbouring drainage basins * Drainage basin, an area of land where surface water converges (North American usage) Music * Watershed Music Festival, an annual country ...

category * Drainage systems of Australia category

Examples

* Lake Erie Watershed (Pennsylvania) *

Guadalupe Watershed The Guadalupe River watershed consists of of land within northern California's Santa Clara County. The surface runoff from this area drains into the Guadalupe River, its tributary streams, reservoirs or other bodies of water which all eventually ...

* Hudson River Watershed * Humber Watershed * Turtle Creek Watershed

Watershed and drainage basin organisations and institutions

Management organisations

Watershed management Watershed management is the study of the relevant characteristics of a watershed aimed at the sustainable distribution of its resources and the process of creating and implementing plans, programs and projects to sustain and enhance watershed f ...

, the management of drainage basins *

Watershed Protection and Flood Prevention Act The United States Watershed Protection and Flood Prevention Act of 1954 () is a United States statute. It has been amended several times. Under this Act, the Soil Conservation Service at the Department of Agriculture provides planning assistance ...

, a United States law controlling drainage and water storage * Watershed district (Minnesota), one of a number of government entities in the US state of Minnesota which monitor and regulate the use of water in drainage basins *

Watershed district (Russia) A watershed district () in Russia is any of twenty groups of water bodies listed in the Water Code of Russian Federation, serving as the main unit of management in the field of use and protection of water bodies. According to chapter 4, article 28 ...

, one of twenty groups of water bodies listed in the Water Code of the Russian Federation

Examples

* Council for Watershed Health *

Great Swamp Watershed Association The Great Swamp Watershed Association is a member-based, non-profit, 501(c)(3) conservation organization dedicated to preserving and protecting water and natural areas. Their programs serve all who live, work, or play in the Great Swamp watershed i ...

Minnehaha Creek Watershed District The Minnehaha Creek Watershed District is a watershed district in Minnesota with a mission to collaborate with public and private partners to protect and improve land and water for current and future generations. The Minnehaha Creek in its name ...

* Santa Fe Watershed Association * Walla Walla Basin Watershed Council * Yukon River Inter-Tribal Watershed Council

Study institutions

University of South Carolina Upstate The University of South Carolina Upstate (USC Upstate) is a public university in Valley Falls, South Carolina, United States. It has a Spartanburg postal address. Founded in 1967 and formerly known as University of South Carolina Spartanburg, ...

: Center for Watershed Ecology

Other uses

Watershed College Watershed College (or Watershed) is a private boarding school situated near Marondera in Zimbabwe. The College provides secondary education as well as an Agricultural course for girls and boys between the ages of 13 and 19. Watershed College ...

Zimbabwe file:Zimbabwe, relief map.jpg, upright=1.22, Zimbabwe, relief map Zimbabwe, officially the Republic of Zimbabwe, is a landlocked country in Southeast Africa, between the Zambezi and Limpopo Rivers, bordered by South Africa to the south, Bots ...

Watershed Media Centre Watershed opened in June 1982 as the United Kingdom's first dedicated media centre. Based in former warehouses on the Bristol Harbour, harbourside at Bristol, it hosts three Movie theater, cinemas, a café/Bar (establishment), bar, events/confe ...

Bristol, England Bristol () is a City status in the United Kingdom, cathedral city, unitary authority area and ceremonial county in South West England, the most populous city in the region. Built around the River Avon, Bristol, River Avon, it is bordered by t ...

* Stony Brook Millstone Watershed Arboretum *"River of Words"; watersheds as subject poetry competition {{DEFAULTSORT:watershed topics - List of Watershed topics

Watershed Watershed may refer to: Hydrology * Drainage divide, the line that separates neighbouring drainage basins * Drainage basin, an area of land where surface water converges (North American usage) Music * Watershed Music Festival, an annual country ...

Water and the environment