they get sued but they have so much money and the courts are on the side of the mines/logging companies that nothing happens. they rarely outright revoke the permits for these mines or tell the logging companies to fuck off and seize the lands via eminent domain.  the company that defrauded the loggers is the same one that owns the famous blackwater canyon (well the non-public half anyways), and they got a big tasty payout for finally selling their land (though i'm not sure if that means the whole canyon is truly public land now or if they will actually take advantage of that).
Tree Hugger