Robert Jacob Todd called a friend in south Auburn (Lakeland Hills) that day and told them he planned to walk to their home from the 4200 block of Auburn Way South, which was about five miles away.
He never arrived and has not been heard from since. He was reported missing April 15.
Todd planned to take various trails, including two near Dogwood/Forest Ridge Drive and White River Trail.
Police have searched the wooded areas along the White River Trail but found no sign of him.
Todd is 6-feet and 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 is asked to call the Auburn Police Department at 253-288-7403.