Badwater ultramarathon will return to Death Valley in 2015, with a few changes, after a year-long moratorium by the park service

The 135-mile Badwater ultramarathon will be allowed to stage its annual race in Death Valley National Park after agreeing to make some changes after a safety study conducted by the National Park Service. My story for ESPN.com: http://espn.go.com/blog/endurance/post/_/id/2483/badwater-ultramarathon-returning-to-death-valley