Robert Jacob Todd, 20, was reported missing on April 15 and was last seen April 11.
Todd had spoken with friends living in the Lakeland Hills area of south Auburn and said he was going to walk to their residence from 4205 Auburn Way South, roughly five miles away.
Reports indicate Todd was planning on taking various trails in the area to get there. He mentioned one in the area of Dogwood-Forest Ridge Drive and a second along the White River Trail on the south side of the river.
He never arrived at his friends' house and has not been seen or heard from since.
Todd is about 6 feet tall, weighing 180 pounds with brown hair and blue eyes. He was last seen wearing a blue T-shirt, shorts over "skinny jeans" and blue Nike shoes with a bright orange Nike swoosh.
Anyone with information about Todd is asked to call 911 or the Auburn police tip line at 253-288-7403.