NAME 



DESIG. 



LAT. 



LONG. 



Umnak Canyon 

 Umnak Plateau 

 Unalaska Basin 

 Unalga Basin 

 Unarang Rock 



Uncle Sam Bank 



Unicorn Seamount 



Unimak Seamount 



Union Banks: see Union Reefs 



Union Reefs 



Union Sea Channel: see Scott Seachannel 



Union Seamount 



Uracas Ridge 



Urashima Bank 



Urashima-guri: see Urashima Bank 



Urashima-sho: see Urashima Bank 

 Urasima Guri: see Urashima Bank 

 Urdaneta Seamount 

 Urry Bank 

 Usarp Fracture Zone: 

 see Udintsev Fracture Zone 



Ushakova Strath: see Svyataya Anna Trough 

 Usof Canyon 

 Ustica Escarpment 

 Ustica Ridge 

 Ustica Trough 



Uyeda Ridge 



Vacquier Seamount 



Valdivia, Banc de la: see Valdivia Seamount 

 Valdivia Bank: see Valdivia Seamount 

 Valdivia Basin: see Atlantic-Indian Basin 

 Valdivia Deep: see Atlantic-Indian Basin 



Valdivia Fracture Zone 



Valdivia Seamount 



Val'diviya, Banka: see Valdivia Seamount 



Valencia Trough 



Valparaiso Shoal 



Vamizi Canyon 

 Vance Seamount 

 Van Cloon Shoal 

 Vancouver Canyon 

 Vancouver Gap 



Vancouver Submarine Valley: 



see Vancouver Valley 

 Vancouver Valley 



Vanderford Strath: see Vanderford Valley 

 Vanderford Submarine Valley: 



see Vanderford Valley 

 Vanderford Valley 



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