The Henares () is a river in Central Iberia, a left-bank

tributary A tributary, or an ''affluent'', is a stream or river that flows into a larger stream (''main stem'' or ''"parent"''), river, or a lake. A tributary does not flow directly into a sea or ocean. Tributaries, and the main stem river into which they ...

of the Jarama. It has its source in the , near the village of Horna, in the municipality of

Sigüenza Sigüenza () is a city in the La Serranía, Serranía de Guadalajara Comarcas of Castile-La Mancha, comarca, Province of Guadalajara, Castile-La Mancha, Spain. History The site of the ancient ''Segontia'' ('dominating over the valley') of the C ...

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 ...

, Spain. Its tributaries are the Torote, the Sorbe, the Cañamares, the Salado, the Dulce, the Aliendre, and the Bornova. ''Henares'' in Spanish is the plural of ''henar'' 'hayfield' (derived from the Latin word ''faenum'' 'hay'), because formerly there were hay fields on the river's banks.

See also