The Puerto de Ventana and the crossing of the vaqueiros Curiosity · San Emiliano, La Montaña de Luna, León For centuries the vaqueiros have crossed the Ventana pass with their herds between Asturias and Babia; the custom is still alive and Asturian livestock continues to use the municipality's pastures in summer. Photo: César J. Pollo (CC BY-SA 4.0) What to see and do in San Emiliano