Mount Hampton is a shield volcano

Shield volcano

A shield volcano is a type of volcano usually built almost entirely of fluid lava flows. They are named for their large size and low profile, resembling a warrior's shield. This is caused by the highly fluid lava they erupt, which travels farther than lava erupted from more explosive volcanoes...

 with a circular ice-filled crater

Volcanic crater

A volcanic crater is a circular depression in the ground caused by volcanic activity. It is typically a basin, circular in form within which occurs a vent from which magma erupts as gases, lava, and ejecta. A crater can be of large dimensions, and sometimes of great depth...

 occupying much of the summit area. It is the northernmost of the extinct volcano

Volcano

2. Bedrock3. Conduit 4. Base5. Sill6. Dike7. Layers of ash emitted by the volcano8. Flank| 9. Layers of lava emitted by the volcano10. Throat11. Parasitic cone12. Lava flow13. Vent14. Crater15...

es which comprise the Executive Committee Range

Executive Committee Range

The Executive Committee Range is a range consisting of five major mountains, volcanic in origin, which trends north-south for along the 126th meridian west, in Marie Byrd Land, Antarctica....

 in Marie Byrd Land

Marie Byrd Land

Marie Byrd Land is the portion of West Antarctica lying east of the Ross Ice Shelf and the Ross Sea and south of the Pacific Ocean, extending eastward approximately to a line between the head of the Ross Ice Shelf and Eights Coast. It stretches between 158°W and 103°24'W...

.

Discovered by the USAS on a flight, December 15, 1940, and named for Ruth Hampton, Dept. of the Interior member of the USAS Executive Committee. Mapped in detail by USGS from surveys and U.S. Navy trimetrogon photography, 1958-60.