To the northwest of the county of León, in the middle of heart of the Picks of Europe in it abuts her with Asturias and Cantabria, he/she is the Valley of Valdeón. The landscape, impressive, is without a doubt one of the most beautiful and spectacular of the Spanish geography. The sharp and high picks that attract today to visitors' thousands, were in another time the barrier that propitiated the geographical isolation of this region leonesa that together to the great distance with the nearest population nuclei forced the inhabitants of Valdeón to create their own hábitat of survival. With the step of the time some of the daily facts of that time have been ingrained as traditions. One of them is the elaboration of the Blue Cheese of Valdeón.