Charles Raymond Bentley was a distinguished American geophysicist and glaciologist whose research fundamentally shaped modern polar science. Born in Rochester, New York, Bentley spent much of his career at the University of Wisconsin–Madison, where he served as a professor emeritus. His pioneering field investigations during the mid-to-late 20th century provided some of the earliest and most critical data on the physical characteristics of the Antarctic continent.
In 1957, Bentley participated in a historic expedition across West Antarctica alongside a small group of scientists, including Mario Giovinetto. Traveling in tracked vehicles, the team successfully completed the first-ever measurements of the West Antarctic ice sheet. This hazardous journey yielded vital scientific insights into the thickness of the ice and the topography of the land beneath it, establishing a baseline for future climate and glaciological research.
Over his long career, Bentley received numerous accolades for his contributions to polar exploration, including the Seligman Crystal from the International Glaciological Society in 1990. His legacy is permanently mapped onto the southern continent through Mount Bentley and the Bentley Subglacial Trench, both named in his honor. Bentley passed away in Oakland, California, in 2017 at the age of 87.
