As of March 2012, out of the 2.27 billion acres in the country, about 28% of the total is claimed by the Federal government according to the Interior Department (including over 80% of the State of Nevada ).
If what you say is the correct understanding of the intent of the framers of the Constitution, the Federal government been violating it for over a hundred years with the complicity of the states.
Wait you mean State Politiclowns and Federal Politiclowns have knowingly ignored/violated the Constitution?
Well we all know that is not possible. Politiclowns would never do such a thing... [/dripping sarcasm]