This delimitation of the Alps is, however, largely subjective and open to argument. In particular, some people restrict the use of the term Alps to the higher mountains in the centre of the range, relegating the surrounding hills and mountains to the status of pre-Alps or foothills. This can sometimes lead to conflicting definitions, such as Mont Ventoux being considered to lie outside the Alps (there are no comparably sized mountains around it, and it is at a considerable distance from the main chain of the Alps).