WALKER - Cass County Sheriff Tom Burch reported Monday the fourth anniversary of the unresolved disappearance of Peter Achermann of Staples is approaching. The investigation into Achermann's disappearance continues and the reward for information has been extended.

On July 24, 2009, Achermann left his home to run errands and was last seen on Warner Road, by the Crow Wing River Bridge, between noon and 1 p.m. His vehicle, described as a light blue 1995 Chevrolet Caprice Wagon, was located off County Road 32 at the end of a minimum maintenance road on July 25, 2009. Despite extensive searches of the area, no trace of Achermann has been found.

Sheriff Burch reported the sheriff’s office is working closely with the Minnesota Bureau of Criminal Apprehension and is committed to working toward solving the disappearance. While several leads have been followed up, there hasn’t been anything substantial to help solve the disappearance.

Anyone with information, tips or leads on Achermann’s whereabouts is asked to contact the Cass County Sheriff’s Office at 800-450-2677, 547-1424 or 911. Sheriff Burch announced a reward of up to $20,000 for information leading to the arrest and conviction of the person(s) responsible for the disappearance, if the disappearance is the result of foul play.