GRAND CANYON NATIONAL PARK, Ariz. — National Park Service officials say 58-year-old Martin Edward O’Connor of La Porte, Texas, was located Thursday morning on the rugged New Hance Trail, one of the most difficult trails on the South Rim of the Grand Canyon. He was flown out in a helicopter.

O’Connor, who had been missing for 11 days in wintry conditions, was undergoing a medical evaluation.

Authorities said he was in stable condition.

Before being located, O’Connor was last seen at a lodge in Grand Canyon Village on Dec. 22.