A Marana man died near Sonoita when he crashed his dirt bike, hitting his head on rocks, Santa Cruz County Sheriff Antonio Estrada said.
Angel H. De La Ossa, 37, died about 5 p.m. Saturday when he lost control of his motorized bike at about 40 mph along Canelo Pass Road, Estrada said.
A relative who was following De La Ossa down the dirt road, about five miles southwest of state Route 83, called 911 on a cell phone.
Deputies arrived and found De La Ossa dead, Estrada said.
De La Ossa was not wearing a helmet, the sheriff said.