In December 2007, the Lakotah Freedom Delegation traveled to Washington, D.C. to speak with the State Department. They said that the Lakota were withdrawing from several treaties that had been signed with the United States citing violations by the federal government. For example, the US and the Lakotah made an agreement called the . It said that the Lakotah could keep the Black Hills. The Black Hills are a very sacred place for the Lakotah. The US broke the agreement and invaded the Black Hills when gold was found there. Today, the Black Hills is home to the National monument of Mount Rushmore.