No person shall establish, operate, or maintain a junkyard, any portion of which is within 1,000 feet of the nearest edge of the right-of-way of any federal-aid or state highways within the State, except the following:

(1) Those which are screened by natural objects, plantings, fences, or other appropriate means so as not to be visible from the main traveled way of a federal-aid or state highway.
(2) Those which are not visible from the main traveled way of a federal-aid or state highway.