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An Idaho teen was found about 12 miles from a Summit County campsite where he was separated from his family.

Joseph Schellenberg, 17, of Rexburg, Idaho, was camping with his family near Long Lake on Monday night, said Summit County sheriff's Sgt. Ron Bridge. He disappeared some time after 11 p.m., when they went to bed.

"Family members woke up ... and discovered he was gone," Bridge said. Schellenberg has a developmental disability, Bridge said.

Searchers found Schellenberg about 5 p.m. Tuesday, some 12 miles from Long Lake. It was unclear why he had left the campsite, Bridge said. Schellenberg was not injured.

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