With its 2,274 m, it is the highest peak in the Sierra de Ayllón and in the province of Guadalajara. It is the natural limit between the provinces of Guadalajara and Segovia.
The Tres Provincias Peak is at the northern vertex of the province of Madrid, exactly at the top point of its triangular map. At this point Madrid joins Guadalajara and Segovia. The landscape seen in all directions is spectacular.
Geodesic point just separated from the Horizontal (although you have to climb a very steep slope) that allows you to see the Segovian side of the Sierra.
At the top of El Cardoso de La Sierra, it is a passageway from one valley to the next. Near Santuy and La Calahorra. It has a beautiful milestone and a shepherd's hut.