Their request for a permission to open a mine was denied on environmental grounds.

基于对环境问题的考虑，他们开矿的请求没有被许可。

youdao

Charles Jencks's latest land sculpture is being built on a former open cast mine in Fife.

BBC: Above Scotland with an aerial archaeologist

Buy it and you make some open-pit mine in Arizona a little deeper.

FORBES: The Guilt-Free Consumer

There is no road, the works have all gone, there is an open-cast mine, and there is a free mountain to boot.

BBC: News Online