Potato of Losa Food and drink · Valle de Losa, Las Merindades, Burgos Image of Valle de Losa, not of the place itself. The soil and the cool climate of the valley produce a potato of comarca-wide fame, covered by a mark of its own, which has become the main agri-food draw of a municipality of twenty-two entities. Photo: Luis Rogelio HM (CC BY-SA 2.0) What to see and do in Valle de Losa