U.TRNU trench

a long, narrow, characteristically very deep and asymmetrical depression of the sea floor, with relatively steep sides

23 features in 14 countries.

#CountryFeaturesShare of the world
1JapanJP3
2VanuatuVU3
3MicronesiaFM2
4MadagascarMG2
5Northern Mariana IslandsMP2
6Papua New GuineaPG2
7PalauPW2
8ChinaCN1
9FranceFR1
10GuamGU1
11NorwayNO1
12RussiaRU1
13Solomon IslandsSB1
14TongaTO1
Total23