Adaja

The Adaja is a river of Spain located in the centre of the Iberian Peninsula, a major left-bank tributary of the Douro.^[1] Featuring a total length of 163 km, its river basin drains an area of 5,328 km2.^[2]

Adaja
The Adaja near Ávila
Location
Country	Spain
Physical characteristics
Source
• location	Fuente Berroqueña
• coordinates	40°32′22.57″N 5°09′10.09″W
Mouth
• location	Douro
• coordinates	41°31′59.53″N 4°51′47.81″W
Length	163 km (101 mi)
Basin size	5,328 km2 (2,057 sq mi)
Basin features
Progression	Douro→ Atlantic Ocean
Tributaries
• right	Eresma

It has its source in the so-called Fuente Berroqueña (Villatoro, province of Ávila), near the saddle point between La Serrota [es] and the Sierra de Ávila.^[2] Initially following a Southwest-Northeast course through the Amblés Valley, the Adaja bends towards the North in Ávila. It receives the contribution of its most important tributary, the Eresma, near Matapozuelos,^[3] emptying in the Douro in the province of Valladolid near the town of Aniago.^[4]

River map