Cumberland Marsh Natural Area Preserve protects one thousand ninety-five acres of freshwater tidal marsh along Virginia’s Pamunkey River near Cumberland Hospital Children-Adolescents. Owned by the Nature Conservancy, it preserves an important river-edge ecosystem and provides habitat for bald eagles, osprey, blue herons, and egrets. The marsh also shelters sensitive joint-vetch. In winter, it serves as an important refuge for waterfowl, highlighting its ecological value as conserved marshland.