León is a province of northwestern Spain, in the northwestern part of the autonomous community of Castile and León. It is bordered by the provinces of Zamora, Ourense, Lugo, Asturias, Cantabria, Palencia, and Valladolid.
The province shares the Parque Nacional Picos de Europa (in the Picos de Europa mountain range) with Cantabria and Asturias.