Salduro (also Salduro Siding) is a ghost town located in Tooele County, Utah, United States.The name "Salduro" is a combination of Latin and Spanish and means rock or hard salt.The settlement was located on the geologically-significant Salduro Salt Marsh, also known as the Bonneville Salt Flats.Bonneville Speedway is located approximately 1 mi (1.6 km) north of Salduro.