For the purpose of cooperating with the State of Oklahoma in conserving the natural resources of the state and promoting the health, safety, peace, morals and general welfare of the state, in any county of the state having within its boundaries all or part of an upstream terminal port or turnaround where navigation ends, or in any county containing all or part of a reservoir or reservoirs constructed by the Bureau of Reclamation, the U.S. Army Corps of Engineers or the Grand River Dam Authority, there may be created at the discretion of the board of county commissioners a Lake Area Planning Commission with the powers, authority, functions, duties and jurisdictional area set out in this act.¹