Andy Dupuis plows his ATV through the 200-foot course Saturday during the fourth annual Adam G. Gatchell Memorial Mud Run in Mexico. It is held in memory of organizer Bonnie Gatchell’s son, Adam, who died in 2018 of fentanyl poisoning from his opioid addiction. Mud and trucks were among Adam’s favorite things, she said. Proceeds assist people in detox and rehabilitation programs, and sober housing expenses.  Bruce Farrin/Rumford Falls Times