The Drentsche Aa is a river rising in the Dutch

Netherlands

The Netherlands is a constituent country of the Kingdom of the Netherlands, located mainly in North-West Europe and with several islands in the Caribbean. Mainland Netherlands borders the North Sea to the north and west, Belgium to the south, and Germany to the east, and shares maritime borders...

 province of Drenthe

Drenthe

Drenthe is a province of the Netherlands, located in the north-east of the country. The capital city is Assen. It is bordered by Overijssel to the south, Friesland to the west, Groningen to the north, and Germany to the east.-History:Drenthe, unlike many other parts of the Netherlands, has been a...

, flowing through the province of Groningen

Groningen (province)

Groningen [] is the northeasternmost province of the Netherlands. In the east it borders the German state of Niedersachsen , in the south Drenthe, in the west Friesland and in the north the Wadden Sea...

. It ends in the Schipsloot near Haren, which flows into the Noord-Willemskanaal, however originally it ended into the Selwerderdiep. The water finally ends in the Lauwersmeer

Lauwersmeer

Lauwersmeer is a man-made lake in the north of the Netherlands, on the border of the provinces of Groningen and Friesland. The lake was formed on 1969-05-23, when the dike between the bay called "Lauwers Sea" and the Wadden Sea was closed....

 and Waddenzee.

In Groningen and the northernmost part of Drenthe the water is known as Drentsche Aa (sometimes Aa in Groningen), but in Drenthe it has a multitude of local names, such as Deurzerdiep, Looner Diep, Taarlosche Diep, Oudemolensche Diep, Schipborgsche Diep, and Westerdiep. A large part of the catchment

Drainage basin

A drainage basin is an extent or an area of land where surface water from rain and melting snow or ice converges to a single point, usually the exit of the basin, where the waters join another waterbody, such as a river, lake, reservoir, estuary, wetland, sea, or ocean...

 of the Drentsche Aa is located in the Drentsche Aa National Landscape

Drentsche Aa National Landscape

The Drentsche Aa National Landscape is a national park located in the Dutch province of Drenthe on the west side of the Hondsrug. It consists of the cultural landscape surrounding the valley of the small river the Drentsche Aa...

.