 Osorno la Mayor is located on the eastern edge of the province in a region called Tierra de Campos, 50 kilometers from the provincial capital Palencia.The town is considered a crossroad for its location on the natural path from the northern plateau to the Bay of Biscay, and from Burgos towards León and Galicia.Economic activity in this region has historically been based on agriculture, in particular the cultivation of grains, although this activity is now in decline.