That peninsula's eastern coast is on the Weddell Sea.
Mount Melbourne and Berlin are active volcanoes on this landmass. The American Highland is a region of this landmass featuring a large number of exposed rocky surfaces called nunataks. The Sentinel Range runs along this landmass and culminates near a peninsula called Graham Land. That peninsula's eastern coast is on the Weddell Sea. The highest point on this landmass is named for a Georgia senator. Vinson Massif is the tallest mountain on, FTP, what continent governed by seven countries and featuring the Ross Ice Shelf.
Mount Melbourne and Berlin are active volcanoes on this landmass.
Antarctica