All of the provided responses highlight negative impacts of gold and silver mining in the West, but if we were to choose one that encapsulates a broader theme, it would be:
Ghost towns were left behind after the mines stopped producing.
This response reflects the long-term consequence of mining activity, where once-thriving communities became deserted, leading to economic decline and loss of social structures. However, it's important to note that each of the responses you provided includes valid negative aspects of mining in the West.