First of all, this area used to be the ancient Central Plains of China and one of the important cradles of China's history and culture, so the cultural sites here are also very rich, including a large number of ancient tombs. These ancient tombs cover a long historical period, with different discoveries from Shang Dynasty to Mongolian Yuan Dynasty.
Secondly, the geographical environment and climatic conditions in this area also provide good conditions for the excavation of ancient tombs. Puyang and Anyang are located in the North China Plain and the middle reaches of the Yellow River respectively. The climate and soil conditions here are very suitable for the preservation of tombs, which is one of the reasons why a large number of relatively well-preserved ancient tombs can be found here.
Another important reason is that this area used to be one of the political, economic and cultural centers in the past historical period, which provided very good conditions for the activities and tombs of various dynasties and nobles at that time. Most of these ancient tombs kept some cultural relics, which changed people's understanding of the historical development at that time. Sometimes, some important archaeological discoveries can also promote a new understanding of the whole historical field.
In a word, the combination of these factors makes the ancient tombs in this area very rich, which has aroused widespread concern and exploration.