Luoghi in Caratteristiche Undersea che comincia con la lettera "at"
Atacama Graben (fossa),
Atacama Trench (fossa),
Atakamskiy Zhelob (fossa),
Atakapa Basin (bacino)Atka Basin (bacino),
Atka Canyon (canyon),
Atka Seamount (montagna marina)Atlantic Antarctic Basin (bacino),
Atlantic Indian Swell (cresta),
Atlantic Ridge (cordigliera),
Atlantic Scotia Ridge (cresta),
Atlantic Seamount (montagna marina),
Atlantic-Antarctic Ridge (cresta),
Atlantic-Indian Antarctic Basin (bacino),
Atlantic-Indian Basin (bacino),
Atlantic-Indian Ridge (cresta),
Atlantic-Indian Rise (cresta),
Atlantin-Intian Selänne (cresta),
Atlantis Canyon (canyon),
Atlantis Cordillera (cordigliera),
Atlantis Fracture Zone (zona di frattura),
Atlantis II Fracture Zone (zona di frattura),
Atlantis II Seamount Group (montagne marine),
Atlantis II Seamounts (montagne marine),
Atlantis Seamount (montagna marina),
Atlantis Terrace (terrazza),
Atlantis-Great Meteor Seamount Chain (montagne marine),
Atlantis-Plato-Cruiser-Great Meteor Seamount Group (montagne marine),
Atlantisk-Indiska Ryggen (cresta),
Atlantiska Centralryggen (cordigliera)Atwater Valley (valle)