U.S. Fish and Wildlife Service

In this Thursday, May 3, 2018 photo, downed trees mark the route of the proposed Mountain Valley pipeline in Lindside, W.Va.
Steve Helber / Associated Press

Conservation groups have launched a new lawsuit aimed at the Mountain Valley Pipeline over its impacts on threatened and endangered species.

The petition for review filed Monday with the 4th U.S. Circuit Court of Appeals in Richmond challenges an approval for the natural gas pipeline that was issued by the U.S. Fish and Wildlife Service.

Glynis Board / WVPublic

A federal lawsuit filed this week by an environmental group alleges two protected crayfish species are being harmed by coal mining in West Virginia, Kentucky and Virginia.

The suit, filed Wednesday in West Virginia by the Center for Biological Diversity, alleges that the U.S. Fish and Wildlife Service has missed the one-year time frame set under the Endangered Species Act in which to designate habitat areas for the two crayfish species.

Glynis Board / WVPublic

  The U.S. Fish and Wildlife Service has proposed adding two crayfish species to the Endangered Species list.

The agency said Monday in a news release that the Big Sandy crayfish and the Guyandotte River crayfish are at risk of extinction.