Signing for camping shall be limited to those business establishments within 15 miles from the gore of the associated off-ramp. Repealed. The campground shall have a minimum of ten camping spaces. The campground shall have adequate parking for each camping space. The campground shall have sanitary facilities. The campground shall have drinking water. The campground access shall be capable of accommodating vehicles and trailers during all weather conditions. The campground shall have a telephone available for public use. The campground may not be closed to public use other than for a single period of up to 120 consecutive days between November 1 and April 1.