Des Moines, IA – The United States Fish and Wildlife Service has revoked its approval of a construction permit for the Dakota Access pipeline through the Big Sioux River Wildlife Management Area in Northeast Iowa. This permit is called the Sovereign Lands Construction Permit and was revoked because a significant Native American archaeological site was discovered along its proposed path. Due to the permit revocation, the Iowa Department of Natural Resources has ordered that Dakota Access LLC stop all construction work for its Bakken oil pipeline until a survey of the area is conducted and consultation with local agencies and tribes is completed.