In general , a region is a medium-scale area of land or water , smaller than the whole areas of interest -LRB- which could be , for example , the world , a nation , a river basin , mountain range , and so on -RRB- , and larger than a specific site .

It is smaller than the whole area of something -LRB- which could be , for example , the world , a nation , a mountain range , and so on -RRB- .
