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Exposure killed Washington man at lake in Yellowstone, no sign of brother from Utah

Yellowstone National Park officials say Mark O'Neill died of hypothermia. His brother, Kim Crumbo from Utah, has not been found.

Yellowstone National Park officials say Mark O'Neill died of hypothermia. His brother, Kim Crumbo from Utah, has not been found. (Yellowstone National Park)



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YELLOWSTONE NATIONAL PARK, Wyo. — Yellowstone National Park officials say an autopsy has determined that a man whose body was found on the shore of a lake died of hypothermia.

The body of 67-year-old Mark O'Neill, of Chimacum, Washington, was found Sept. 20 on the eastern shore of Shoshone Lake.

O'Neill's brother, 74-year-old Kim Crumbo, of Ogden, remains missing.

The men were on a four-night backcountry trip and reported overdue. Park officials said Wednesday they will continue to look for Crumbo as conditions allow. A vacant campsite was found on the lake's south side.

Shoshone Lake averages 48 degrees, a temperature that can be deadly within half an hour.

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The Associated Press

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