Agreements may be entered into between the department and any agency of the United States, any city, county, district, or other public agency, or any combination thereof, for the care, maintenance, administration, and control by any party to the agreement, of lands under the jurisdiction of any party to the agreement for the purpose of the state park system. The expenses of the care, maintenance, administration, and control may be paid from the general fund of the city, county, district, or other public agency, from the funds of the department, from any funds available to the agency of the United States for these purposes, as the case may be, or from revenues generated on the lands subject to the agreement.