La Bureba is a comarca located in the northeast of the Province of Burgos in the autonomous community of Castile and León, Spain. It is bounded on the north by Las Merindades, east by the Comarca del

Odra-Pisuerga is a comarca located in the west of the province of Burgos, in the autonomous community of Castile and León, Spain. It is bounded by the west and south-west by the province of Palencia,