Linked from
The 9 pages that link to Marie Byrd Land, each with the reason it gives.
Ross SeaRelated: Its Antarctic coast marks the sea’s eastern side.
Amundsen SeaRelated: Its coastline forms the sea's eastern and northern land boundary.
Vinson MassifRelated: It helps place Vinson Massif within the geography of West Antarctica.
Thurston IslandRelated: It borders the broader western Antarctic region near the island.