Eleven expeditions to Antarctica. Author of 'Mountaineering In Antarctica: Climbing In The Frozen South' (2010) and The Antarctic Mountaineering Chronology (1998). Produced new topographical maps of Livingston Island (2004) and Vinson and the Sentinel Range (2006). In 2006 the USGS named the Gildea Glacier for my climbing and mapping work in the Sentinel Range. Guided two ski expeditions to the South Pole - from Hercules Inlet in 2000-01 and the Last Degree in 2012. Antarctic correspondent for the American Alpine Journal since 1999 and Alpinist magazine. Numerous expeditions to the Himalaya, Karakoram, Andes and elsewhere.

Crossing Antarctica: How the Confusion Began and Where Do We Go From Here

On December 27, Colin O’Brady wrote triumphantly on Instagram: “The...

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