Any cooperative grazing association organized under the provisions of this chapter, upon completion of its organization and incorporation, shall file with the recorder of the county and with the dean of the school of agriculture of the North Dakota state university of agriculture and applied science, a map or plat of the grazing district proposed to be created and the subdivisions therein. Whenever any incorporated grazing association shall enlarge or reduce    the area included within its district, or change or modify its boundaries or subdivisions, it shall file with the recorder and the dean of the school of agriculture of the state university of agriculture and applied science a map or plat indicating such changed boundaries.