| Sierra de Algairén | |
| Highest: | Pico de Valdemadera |
| Elevation M: | 1276 |
| Listing: | List of mountains in Aragon |
| Map: | Spain |
| Location: | Campo de Cariñena & Comunidad de Calatayud (Aragon) |
| Parent: | Iberian System |
| Coordinates: | 41.3564°N -1.3764°W |
| Geology: | Sandstone and slate |
| Period: | Paleozoic |
| First Ascent: | Unknown |
| Easiest Route: | Drive from Almonacid de la Sierra, Cosuenda or Tobed |
Sierra de Algairén is a mountain range in Aragon, Spain, located between the comarcas of Campo de Cariñena and Comunidad de Calatayud. The ridge's highest summit is Pico de Valdemadera (1,276 m).[1]
The Algairén Mountains are covered with forest made up pine, Carrasca (Quercus ilex), cork oak, and also maple trees.[2] They are a Special Protection Area for birds.
These mountains are part of the central area of the Iberian System and the summits are often covered with snow in the winter.