Editor's note: This story has been changed to reflect that the Copper Canyon Ultra Marathon took place in Urique, Mexico.

Micah True, an ultrarunner and legend among Boulder runners, is missing in New Mexico after going out for a run Tuesday morning, according to officials.

True, 60, was last seen Tuesday at the Gila Wilderness Lodge in Gila, N.M., according to Brian Fuller of New Mexico Search and Rescue. The owners of the lodge reported True missing when he did not return Wednesday morning.

Jane Brummer, a friend and co-owner of the lodge, said True left for a 12-mile run at about 10 a.m. Tuesday with a water bottle and wearing running shorts, a T-shirt and running shoes. She said he was supposed to have left for Phoenix on Wednesday.

"When he didn't come home that night, we knew something was wrong," Brummer said. "We don't know if he got turned around or if he's injured or what. He's a very experienced runner. It's kind of hard to believe that he's lost. We just need to get out there and try to track him down."

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