PORTLAND, Ore. (AP) – Authorities have suspended their search for a hiker who disappeared in the Mount Jefferson Wilderness Area southeast of Portland more than a week ago.

Twenty-one-year-old Riley Zickel, a Lewis and Clark College student from Sebastopol, California, went missing after entering the wilderness area July 27. He was last seen that same day by another hiker on the Pacific Crest Trail.

More than 340 people participated in the search for Zickel, covering hundreds of miles of snowy areas and rugged terrain in the Willamette National Forest.

The Marion County Sheriff’s Office says they’ve called off the search after exhausting all available leads.

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