 For years the Coeur d'Alene tried to work with the state on clean-up and management of Lake Coeur d'Alene, but was unable to reach agreement on gaining a larger role.In 1991, the tribe notified the state of its intent to sue for title of the lake and submerged lands beneath.The case was brought in the U.S. District Court which initially held that a suit by the tribe against the state was barred by the Eleventh Amendment.