(Johnson County, IA) -- The Johnson County Sheriff's Office is trying to track down the owner of a truck, hauled out of Coralville Lake. Fishermen using GPS discovered it in March. Crews and divers have now lugged it out of the water. Johnson County Sheriff Brad Kunkel tells Iowa's News Now the truck had been in the lake for a long time, possibly decades. Investigators say they do not believe the discovery is related to any death investigation. Work is underway to determine the make and model and find the truck's owners.