Boord contains one of the best examples of a hemlock ravine in Washington County and the surrounding area. The preserve's state-listed species include rock skullcap, narrow-leaved toothwort and golden-knees. Falls Run cuts through a massive layer of Permian-age sandstone to form the heart of this preserve which is an eastern hemlock-shrouded stream gorge 60-80 feet deep.
Numerous scenic cliffs and overhangs occur along this ravine. The preserve honors the Boord family of Dayton, Ohio, who made a partial gift of this preserve to the division in 1986. The dry hilltops are dominated by oak-hickory mature woods along with Virginia pine and mountain laurel. Yellow birch, cherry birch and eastern hemlock grow on northerly exposures. It is an excellent site for viewing woodland spring wildflowers.