Boord State Nature Preserve 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.
