Luoghi in Caratteristiche Undersea che comincia con la lettera "bl"

> bla

Black Basin (bacino), Black Hole (bacino), Black Mud Canyon (canyon), Blackfin Ridge (cresta), Blackhaw Seamount Range (montagne marine), Blackhaw Seamounts (montagne marine), Blacks Basin (bacino), Blake Abyssal Plain (pianura), Blake Basin (bacino), Blake Canyon (canyon), Blake Escarpment (scarpata), Blake Knolls (collinette), Blake Nose (sperone), Blake Outer Ridge (pendio), Blake Plateau (terrazza), Blake Plateau Nose (sperone), Blake Reef (scogliera), Blake Ridge (pendio), Blake Spur (sperone), Blake Terrace (terrazza), Blake-Bahama Basin (bacino), Blake-Bahama Escarpment (scarpata), Blake-Bahama Outer Ridge (pendio), Blake-Bahama Ridge (pendio), Blanco Fracture Zone (zona di frattura), Blanco Gap (crinale), Blanco Saddle (crinale), Blanco Trench (fossa), Blanco Trough (fossa), Blanes Canyon (canyon), Blavet Canyon (canyon), Blavier Seamount (montagna marina)

> bli

Bligh Bank (secca), Bligh Bank (montagna marina)

> blo

Block Canyon (canyon), Block Island Channel (ripiano valley), Block Island Ridge (cresta), Block Island Shelf Valley (ripiano valley)

> blu

Blue Ridge Seamount (montagna marina)