Hinterland

1.

(the district inland from the coast or a river, an area hear and dependent on a large city, esp. a port. hinterlands remote or less developed part of a country; back country) តំបន់ឆ្ងាយដាច់ស្រយាលពីក្រុង

1.

The land or region lying behind the coast district. The term is used esp. with reference to the so-called doctrine of the hinterland, sometimes advanced, that occupation of the coast supports a claim to an exclusive right to occupy, from time to time, the territory lying inland of the coast.