{West Virginia}...The West Virginia Highlands Conservancy, the Ohio Valley Environmental Coalition and the Sierra Club filed a lawsuit Thursday in U.S. District Court in Huntington challenging a permit issued by the U.S. Army Corps of Engineers for the proposed Highland Reylas mountaintop removal mine in Logan County. The groups claim the corps failed to consider scientific studies that say mountaintop removal mines pose health threats to residents. Highland Reylas is owned by Highland Mining Company, a subsidiary of Alpha Natural Resources.