Mo. Rev. Stat. § 253.095
In order to further the interpretive or educational functions of Missouri state parks, the director of the Missouri department of natural resources is authorized to enter into agreements with private, not-for-profit organizations that are organized solely to provide cooperative, interpretive or educational services to any one Missouri state park. The director may provide state park facility space to such an organization under a cooperative agreement. Net proceeds received from the sale of publications or other materials provided by an organization pursuant to such an agreement entered into under this section shall be retained by the organization for use in the interpretive or educational services provided to such park that the organization is designated to serve.
(L. 2002 S.B. 1015)