A gray wolf has been found dead in a national park, prompting an investigation into the death of this federally protected species.

Colorado Parks and Wildlife said the death of a female gray wolf last weekend in Rocky Mountain National Park is currently under investigation.

CPW and the National Park Service confirmed the wolf died inside the boundaries of RMNP, and said that the U.S. Fish and Wildlife Service will conduct a necropsy and other investigative efforts because gray wolves are federally listed under the Endangered Species Act.