Navajo and Hopi groups along with environmentalists have filed a lawsuit against the federal government demanding it makes a plan to clean up a coal mine that has displaced many families on the Navajo Nation.

The lawsuit said federal regulators within the Interior Department, an owner of the Navajo Generating Station, unlawfully renewed the permit to operate the Peabody Mine, when they should have come up with a plan to close it. The mine feeds the Navajo Generating Station, which is scheduled to shut down next year, if a new buyer doesn't take over.

"For the past 50 years, Peabody has locked up these lands for a single-industrial use and we have seen nothing from federal regulators explaining how our lands will be repaired and our water restored," Diné C.A.R.E.'s Adella Begaye said in a statement.

Still many tribal members, including the 800 people employed by the mine and powerplant, want the industry to stay.