The Center for Biological Diversity says the killing of the female wolf jeopardizes the recovery of gray wolves in Washington.
The federal Fish and Wildlife Service is investigating and would like to prosecute the person responsible.
The Daily Record reports the wolf was a member of the Teanaway pack wearing a radio collar. After signals showed the wolf was not moving, the carcass was found Oct. 28 north of Lake Cle Elum.
Brent Lawrence with the U.S. Fish and Wildlife Service in Portland says wolves are protected by federal and state law west of Highway 97