The Sierra de Urbión is a mountain range located in the Iberian Peninsula, primarily in the provinces of Soria and Burgos in Spain. It is part of the larger Sistema Central and features several peaks, with the highest being Pico Urbión at 2,228 meters. The area is known for its diverse ecosystems, including forests, alpine meadows, and glacial lakes. This mountain range is popular for outdoor activities such as hiking, climbing, and skiing. The Urbión River, which originates in the region, contributes to the area's natural beauty. The Sierra de Urbión is also home to various wildlife species, making it an important ecological zone.