MAYNARD – A Big Lake teenager is in critical condition following a rollover accident on Highway 23 in Chippewa County, according to the Minnesota State Patrol. At approximately 11:48 Sunday morning, a 1997 Chevy pickup was traveling northbound on Highway 23 just south of Maynard when it lost control and rolled. The driver of the Chevy, a 16-year-old girl from Big Lake, sustained life-threatening injuries and was taken to the St. Cloud hospital. Assistance was provided by the Chippewa County Sheriff’s Office, Maynard Fire and Rescue, Clara City Ambulance, Granite Falls Ambulance, and Life Link Air Helicopter.