How many gravel yards are there in Liling?

Details are as follows:

Liling Heshun Quarry, Liling Fuyue Quarry, Liling Yangsanbawan Quarry, Liling Changqing He Shan Quarry, Liling Wangjingda Quarry, etc.

Open area belongs to productive enterprise units. Quarries are mostly located in rock-rich areas, mostly in hills and mountains on land; Sand fields (sand fields) are mostly located in waterways and sand-rich areas, and are mostly built near waterways. Inland areas are built near rivers and lakes, and large-scale marine sand mining is built at the seaside. The production process of sand and gravel is mainly divided into two processes, namely mining and sorting. Its fixed place is mostly used for storage and sorting. A medium-sized production enterprise can produce hundreds of thousands of tons of sand and gravel every year, and a large enterprise can produce millions of tons of sand and gravel every year.