[Karl Spooner]

This clause appears in EVERY States' Constitution.

Would it be possible to demonstrate that without going to too much trouble?

[Duke C.]

this is in Alabama's constitution:

"the people inhabiting the said territory, do agree and declare that they forever disclaim all right and title to the waste or unappropriated lands lying within the said territory; and that the same shall be and remain at the sole and entire disposition of the United States …"

And, Nebraska: "That the people inhabiting said territory do agree and declare that they forever disclaim all right and title to the unappropriated public lands lying within said territory, and that the same shall be and remain at the sole and entire disposition of the United States …"
IDENTICAL to Nevada, and only 1% of Nebraska land is Federal.


more here:
http://nevadajournal.com/2013/08/14/how-nebraskas-federal-land-entered-private-domain/

I haven't looked at every state constitution but I'm sure you'll find the same language in some form.