The department may, subject to the provisions of this article, contract for the harvest of timber on any lands held by the department. No contract for such cutting and sale may be entered into and no timber may be cut or sold unless the board votes that the cutting and sale of the timber is for the best interests of the department and the improvement of its lands, by reason of thinning the timber, harvesting the over-age trees and improving general forestry conditions. Before selling or cutting the timber the department shall coordinate with the State Forester to have the timber cruised and an estimate of the value made. If the State Forester finds that the sale is not in keeping with good forestry practices or will adversely affect the remainder of the timber, the sale must not be made.