Vestfold is currently a county in Norway, bordering Buskerud and Telemark, located west of the Oslofjord, as the name indicates. It includes many smaller, but well-known towns in Norway, such as Larvik, Sandefjord, Tønsberg and Horten; these towns run from Oslo in an almost constant belt of urban areas along the coast, ending in Grenland in neighboring region Telemark [ source WiKi ]