Q()q(ㄑ oneˋ), sandstone in shallow water. The Yellow River Erqi, also known as Datongqi, is located in Dingjiapan Village, Wubao County, Qinjin Grand Canyon, across the river from the ancient town of Lukou, Shanxi Province. The Yellow River passes here, the river is tight, forming a huge gap, its landscape is second only to the Lukou Waterfall, known as the "the second Yellow River in the world".