Comment Comment by payne92 Demand for sand (for concrete) is killing rivers... in AfricaIn the US, dredging rivers or land near a waterway is pretty restricted. Sand is typically mined from open pits, see: https://en.wikipedia.org/wiki/Sand_mining#United_States parent payne92 9 years ago
In the US, dredging rivers or land near a waterway is pretty restricted. Sand is typically mined from open pits, see: https://en.wikipedia.org/wiki/Sand_mining#United_States