COTTAGE GROVE - The Washington County Sheriff’s Office is investigating a drowning that took place in the Mississippi River in Cottage Grove July 29 just before 6 p.m.

William Perkins, 77, of Inver Grove Heights was found near his boat north of Lock and Dam #2.

The Ramsey County Medical Examiner is investigating.

The Cottage Grove Fire Department assisted, using the airboat to help locate the victim.