The Guadarrama in Yunclillos Nature · Yunclillos, La Sagra, Toledo Image of Yunclillos, not of the place itself. The río Guadarrama borders the municipal area of Yunclillos, situated at about 517 metres of altitude at the westernmost end of the comarca of La Sagra, whose boundary the river itself marks on this side. The riverbed passes a little more than a kilometre west of the town centre. Yunclillos is one of the least populated municipalities in the comarca, with 819 inhabitants according to the 2025 census. Photo: Malopez 21 (CC BY-SA 4.0) What to see and do in Yunclillos