(a) The department may lease grazing rights on any state park or any area of a state park. The department may harvest and sell, or sell in place, any timber, hay, livestock, or other product grown on state park land the department finds to be in excess of natural resource management, educational, or interpretive objectives. Timber may be harvested only for forest pest management, salvage, or habitat restoration and under good forestry practices with the advice of the Texas Forest Service.
(b) The department may agree to accept materials, supplies, or services instead of money as part or full payment for a sale or lease under this section. The department may not assign to the materials, supplies, or services accepted as payment under this subsection a value that exceeds their actual market value.
(c) Except for consideration accepted under Subsection (b) of this section, all revenue derived from a lease or sale under this section shall be deposited in the state treasury to the credit of the state parks account.