In June 1874 General George Custer led an expedition to search for gold in the Black Hills. By 1875, some 800 miners and fortune-seekers had flooded into the Hills to pan for gold on land that had been reserved by the treaty exclusively for the Indians. ... “This is a classic broken treaty,” says Hirsch.
The Tenth Amendment or also referred to as Amendment X in simple terms is "Any power that is not given to the federal government is given to the people or the states." Hope this helps.
