The Gallo is a river in the centre of the

Iberian Peninsula The Iberian Peninsula ( ), also known as Iberia, is a peninsula in south-western Europe. Mostly separated from the rest of the European landmass by the Pyrenees, it includes the territories of peninsular Spain and Continental Portugal, comprisin ...

, a right-bank tributary of the

Tagus The Tagus ( ; ; ) is the longest river in the Iberian Peninsula. The river rises in the Montes Universales between Cuenca and Teruel, in mid-eastern Spain, flows , generally westward, and empties into the Atlantic Ocean in Lisbon. Name T ...

. It joins the Tagus in the latter's upper course. It has its source in the Sierra del Tremedal, close to the municipality of

Orihuela del Tremedal Orihuela del Tremedal is a municipality located in the Teruel (province), province of Teruel, Aragon, Spain. According to the 2004 census (Instituto Nacional de Estadística (Spain), INE), the municipality had a population of 605 inhabitants. ...

(

province of Teruel Teruel ( Catalan: ''Terol'' ) is a province of Aragon, in the northeast of Spain. The capital is Teruel. It is bordered by the provinces of Tarragona, Castellón, Valencia (including its exclave Rincón de Ademuz), Cuenca, Guadalajara, and Z ...

). It has a length of 85 km. The river bends to the north in the settlement of Orihuela del Tremedal and it enters the

province of Guadalajara Guadalajara ( , ) is a province of Spain, belonging to the autonomous community of Castilla–La Mancha. As of 2019 it had a population of 258,890 people. The population of the province has grown in the last 10 years. It is located in the centre ...

. It discharges into the Tagus near the San Pedro Bridge.

References

{{reflist Tributaries of the Tagus Rivers of Aragon Rivers of Castilla–La Mancha