US climber dies after scaling Everest in seven-summit bid

Don Cash became ill at the summit and was treated there by his two Sherpa guides.

Mount Everest (David Cheskin/PA)

By Associated Press Reporters

An American climber who fulfilled his dream of climbing the highest mountain on each of the seven continents by reaching the summit of Mount Everest died of probable altitude sickness on the way down, mountaineering officials said.