Níngjìn
Ningjin lies on low ground where several rivers from the Taihang Mountains converge. Southeast of the town spread the waters of the old Dalu marsh. By the middle of the Ming period its central part had dried, dividing the wetlands into southern and northern lakes; the latter became known as Ningjin Bo. Fields and villages occupied parts of the low ground, but the meeting of many rivers made flooding a persistent concern.