INCLINE VILLAGE, Nev. — A 15-year-old boy died in a sledding accident Sunday afternoon north of Lake Tahoe, an official said. The teenager — identified Tuesday as Dylan Ridolfi of El Dorado Hills, Calif. — was sledding down a hill at about 3:30 p.m. in the Sheeps Flat area north of Incline Village when he struck two trees, Washoe County Sheriff’s Office Deputy Armando Avina said Tuesday. According to witnesses, Ridolfi was traveling at “high rate of speed” in an inner tube, Avina said. While CPR was administered, he was pronounced dead on the scene at about 4:10 p.m. As …