ALBUQUERQUE, N.M. — The Navajo Nation and the state of New Mexico have reached multimillion-dollar settlements with mining companies to resolve claims stemming from a 2015 spill that resulted in rivers in three Western states being fouled with a bright- …ALBUQUERQUE, N.M. — The Navajo Nation and the state of New Mexico have reached multimillion-dollar settlements with mining companies to resolve claims stemming from a 2015 spill that resulted in rivers in three Western states being fouled with a bright- …