Gladwyne's Todd Carmichael, who set out early last week on a quest to traverse Death Valley -- alone, on foot, and with no aid -- has ended his expedition after 10 days in 110-degree-plus heat.

He called for a pick-up, and last night was reported safe and sound in Las Vegas.

Caermichael may have been tired after walking 80 out of the 170 miles, but it was the tires on his equipment wagon that gave out.

His associates blogged Wednesday that he was unable to "overcome the difficulties he faced combating equipment failure after equipment failure."

He had spent two days of what was described as "sheer hell" manuevering his way through Last Chance Pass, by free-climbing himself and his equipment wagon up and down vertical cliffs. 

"Todd is extremely disappointed he was not able to reach his goals, but he's resting and already thinking about next year," his associates said.

Here's some audio from Carmichael.