Board members shall have the exclusive control of the expenditures of all money collected to the credit of the metropolitan park and recreation fund created pursuant to sections 67.1754 and 67.1757, and of the supervision, improvement, care and custody of public parks, neighborhood trails, recreational facilities and grounds owned, maintained or managed by the metropolitan district. All moneys received for such purposes shall be deposited in the treasury of the county providing the largest financial contribution to the district to the credit of the metropolitan park and recreation fund and shall be kept separate and apart from the other moneys of such county. The board shall have power to purchase or otherwise secure ground to be used for such parks, neighborhood trails, recreational facilities and grounds, shall have power to appoint suitable persons to maintain such parks, neighborhood trails, recreational grounds and facilities and administer recreational programs and fix their compensation, and shall have power to remove such appointees. The board shall keep accurate records of all its proceedings and actions and shall compile and publish reports of information relating to the metropolitan district and to the board’s functions and proceedings pursuant to the laws of this state.