At about 1000 mountain time, a Cessna 170B ground looped and nosed over while practicing touch-and-go landings at an abandoned airstrip near Mobile. Neither the pilot nor passenger was injured. The Maricopa County Sheriffs Office received a call on the evening of the accident by a person who reported what appeared to be an abandoned airplane lying inverted on a dirt road. Sheriff personnel traced the airplane to the owner and the pilot confirmed that he had ground looped on this strip and collided with a dirt berm.