Miss. Code § 69-27-53
Agencies of this state which shall have jurisdiction over, or be charged with the administration of, any state-owned lands, and of any county, or other governmental subdivision of the state, which shall have jurisdiction over, or be charged with the administration of, any county-owned or other publicly owned lands, lying within the boundaries of any district organized hereunder, shall cooperate to the fullest extent with the commissioners of such districts in the effectuation of programs and operations undertaken by the commissioners under the provisions of this article. The commissioners of such districts shall be given free access to enter and perform work upon such publicly owned lands. The provisions of land-use regulations adopted pursuant to Section 69-27-37, shall have the force and effect of law over all such publicly owned lands, and shall be in all respects observed by the agencies administering such lands.
Miss. Code § 69-27-53