The entire area is composed of plains, with no mountains; the northern portion of the county has several rolling sand dunes.

[citation needed] Yanjin County is located in the Yellow River basin, with 200 million cubic metres of undeveloped state-owned sand dunes and sandy wastelands in the territory, and there is sufficient land for construction.

[6] Dapingdiao is one of the Han Chinese opera genres performed the five provinces of Central China, and belongs to the Bang Zi cadence system.

[7] On 20 May 2006, Dapingdiao was approved by the State Council to be included in the first batch of the National Intangible Cultural Heritage list.

It is also one of the Han Chinese opera genres, and in 2008 was included the second batch of the National Intangible Cultural Heritage list.