“一方水土，养一方人”，这是中国民众普遍流传而人皆共识的道理。实实在在的揭示出人与水土的辩证关系。永定河流淌千万年，不但养了一方人，还蕴育了一方文化和记载了一部古代文明史。 据现代科学技术测定，数千万年前的第三纪，永定河即出现在中国北方陆地上，源于山西宁武 “Water and soil on one side and raising one side” are the common beliefs that Chinese people generally spread. The real reveals the dialectical relationship between man and soil and water. Yongding River flowing millions of years, not only to raise one side, but also contains a culture and recorded a history of ancient civilizations. According to modern science and technology determination, thousands of years ago, the Tertiary, Yongding River that appears in the land of northern China, from Ningxiu Shanxi