The basic explanation is the flat land between mountains, and the detailed explanation is the flat land of dialects. "Ping" focuses on a flat land in the mountains, and "Dam" focuses on a flat land near the water.
From Wu Boxiao's Song of the Arctic Stars: "It was a night in the early summer of 1939. On the flat dam at the foot of Xishan Mountain outside the north gate of Yan 'an City, the coal steam lamp shines brightly. "
Extended data:
Pingba town with the same name
1. Pingba Town belongs to jingshan county, Hubei Province, and is located in the north of jingshan county. Wang Yizhen Town, Anlu City in the east, Luodian Town and Song He Town in the south, Sanyang Town in the west and Jiejia Village, Luo Yang Town, Suizhou City in the north.
2. Pingba Town is located in the connection zone of Xiangshan Mountain, the southern branch of Dahong Mountain, with high terrain in the northwest and low terrain in the southeast. There are peaks such as Wangjiazhai, Fairyland Village, Xiangshan Temple and Jigong Mountain in the territory, with undulating terrain, overlapping peaks, high on all sides and low in the middle, and a large hilly plain area. The highest point of Xiangshan Temple is 43 1 m above sea level, and the lowest point of Ximagang is 59 m above sea level.
References:
Pingba _ Baidu encyclopedia