Hammer Col [SEP] continent
Hammer Col
Hammer Col is a broad ice-covered col at elevation between the south part of the Vinson Massif and the Craddock Massif in the Sentinel Range of the Ellsworth Mountains, Antarctica. The wide saddle is relatively level and visually separates the two massifs whether viewed from the east or the west. It is part of the glacial divide between the heads of Dater Glacier on the northeast and Gildea Glacier on the southwest.
The feature was named by the Advisory Committee on Antarctic Names (2006) after William R. Hammer
1957 - Jan 1958)
- Lt Col Rowland H Worrell Jr. (Jan 1958 - Mar 1960)
- Lt Col Donald W. Brookie (Mar 1960 - Nov 1961)
- Lt Col Joseph R. Hanley (Nov 1961 - Sep 1964)
- Lt Col Keith L. Gillespie (Sep 1964 - Jan 1967)
- Lt Col Robert D. Glass (Jan 1989 - Jun 1990)
- Lt Col Andrew S. Miller (Jun 1990 - Sep 1991)
- Lt Col Ronald M. Varely (Sep 1991