Several items of property belonging to Robert Keith Johnson were located in the vicinity of Lookout Mountain in Spearfish.
People close to him say he was possibly having mental health and/or substance abuse issues at the time he was last seen.
Limited foot searches and a preliminary air search of the area where the items of his property were located have been conducted with no success.
A larger scale foot search of the area will be conducted as weather allows.
The Spearfish Police Department needs help finding 26-year-old Robert Keith Johnson.
He was last scene on Friday around 10:00 p.m. at his Spearfish home. When he left, he was wearing jeans, a green jacket, a white long-sleeve undershirt, and tan
Johnson does not own a vehicle; and his red Giant brand mountain bike was later reported missing.
His potential destination is not known, and his nearest relative is his father, who lives in Huron.
Johnson is also on parole, however at this time is strictly being sought to check his welfare.
If anyone has information contact Officer Alexandra Lux or the on duty shift
supervisor at the Spearfish Police Department.