This attractive pattern stone came from the headwaters of the Yellow River in Qinghai Province. It is a river cobble which is an abundant type in many of the major rivers; however, stones with beautiful or interesting patterns are not common. The Yellow River and the more southern Yangtze River are major sources of quality river cobble pattern stones like this one. It measures 15 x 14 x 4.2 cm, not including the wooden base.