WILSON, Minn. — A 63-year-old grandmother and her grandson were injured when their four-wheeler went down a 40-foot embankment in the 30000 block of Northwood Drive just off Highway 33. The grandmother was taken to the hospital for head cuts. The grandson, who was driving was not hurt seriously, police said. According to police, the grandson lost his footing on the brake, sending the vehicle down the rain-slick embankment and into a parked truck. The accident happened about 11:50 a.m.