The Cerquilla River is a right

tributary A tributary, or affluent, is a stream or river that flows into a larger stream or 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 drain the surrounding drai ...

of the Cega River in Spain. Its approximately 30 km of route runs through the north of the

province of Segovia Segovia () is a province of central/northern Spain, in the southern part of the autonomous community of Castile and León. It is bordered by the province of Burgos in the north, Soria in the northeast, Guadalajara in the east, Madrid in the sou ...

Route

The Cerquilla River begins in the municipality of Fuentepiñel, then later crosses the south of the municipality of Fuentesaúco de Fuentidueña, separates Cozuelos de Fuentidueña from Olombrada, then enters the municipality of Perosillo, where it meets with the Cagarroñas stream. After meeting with Cagarroñas, it crosses the urban area of

Frumales Frumales is a small village in the province of Segovia, Spain , image_flag = Bandera de España.svg , image_coat = Escudo de España (mazonado).svg , national_motto = ''Plus ultra'' (Latin)(English: "Further B ...

and, approaching the last kilometers of its route, enters

Cuéllar Cuéllar () is a municipality in the Province of Segovia, within the autonomous community of Castile and León, Spain. The municipality had a population of 9,730 inhabitants according to the municipal register of inhabitants (INE) as of 1 Jan ...

through , where it meets with the Mondajos stream and begins to mark the border of the Mar de Pinares. In the La Vega area, next to the Pradillos stream, it borders the area.

References

Rivers of Spain Rivers of Castile and León Segovia Tributaries of the Douro River {{Spain-river-stub