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Thurston Island

geography Maturity 11-13 Next article →

Thurston Island is a massive, glacially dissected landmass in Antarctica.

It is characterized by a long and wide shape. Most of the island is covered by thick ice. It sits between the Amundsen Sea and the Bellingshausen Sea. This island is located near the Eights Coast. A body of water called Peacock Sound separates it from the mainland. The western portion of the Abbot Ice Shelf occupies this sound. To the south, several smaller islands exist. These include Sherman Island, Carpenter Island, and Dustin Island.

The geography of the island is defined by its central mountains. The Walker Mountains form the spine of the landmass. This range contains many distinct peaks. From the west to the east, the peaks include Landfall Peak and Mount Lopez. Other notable peaks are Mount Caldwell, Mount Kazukaitis, and Mount Simpson. The range continues with Mount Noxon, Mount Leech, and Mount Hubbard. Further east, you will find Smith Peak and Mount Borgesen. Other high points include Guy Peaks, Mount Hawthorne, and Mount Bramhall. The range ends with Zuhn Bluff and Parker Peak.

The coastline is very complex with many different features. The northwest side consists of many capes, peninsulas, and inlets. These include Cape Flying Fish, Cape Petersen, and Williams Island. You can also find the Jones Peninsula and Dyer Point. Other features include the Hughes Peninsula and the Tinglof Peninsula. The north coast contains the Sikorski Glacier and the Frankenfield Glacier. It also features Mulroy Island and the Pelter Glacier. The east coast includes the Deadmond Glacier and the Lofgren Peninsula. The southwest coast features the Kannheiser, Craft, and Cox Glaciers.

History shows how our understanding of the island changed over time. Rear Admiral Richard E. Byrd first discovered the island in February 1940. He saw it during a flight from the plane named Bear. Byrd named the island for W. Harris Thurston. Thurston was a textile manufacturer from New York. He designed a special windproof material called "Byrd Cloth." For many years, explorers thought the land was a peninsula. They believed it was attached to the mainland. However, the USN Bellingshausen Sea Expedition proved otherwise in February 1960. They discovered it was actually a separate island.

Many specific locations on the island are named after expedition members. Cape Petersen is named for Carl O. Petersen. He was a radio engineer who worked with Byrd. Williams Island is named for Frederick W. Williams. He was an aviation machinist's mate in the Navy. Jones Peninsula honors Ensign Robert H. Jones. He served as a navigator and pilot. Tinglof Peninsula is named for Ivor Tinglof. He was a mechanic who built heavy cargo sleds. These names help preserve the history of Antarctic exploration. They connect the landscape to the people who mapped it.

The island is also known for a significant historical event. On December 30, 1946, a plane crash occurred here. A Martin PBM-5 Mariner of the US Navy hit a ridge. This was the first fatal plane crash in Antarctica. The aircraft caught fire during the accident. Three of the nine people on board died. The remaining six survivors had to wait for help. It took 13 days for rescuers to reach them. This event is a somber part of the island's record.

Thurston Island to Jones Mountains cropped East of Thurston Island
Thurston Island to Jones Mountains cropped East of Thurston Island

Thurston Island remains a subject of intense geographic study. The various inlets and glaciers show how ice moves. For example, Murphy Inlet has two parallel branches. The Linsley Peninsula divides this inlet into two arms. The island's many peninsulas, like the Noville Peninsula, are high and ice-covered. These features are often identified through aerial photography. Many were first plotted during Operation Highjump in 1946. The island provides a clear example of a glaciated environment. It shows how ice and rock interact in extreme climates.

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