Big Thicket National Preserve Located in Beaumont, TX TRAVEL BASICS - CAMPING - LODGING ACTIVITIES - FACILITIES - FEES/PERMITS NPS Photo IN BRIEF The Preserve consists of nine land units and six water corridors encompassing more than 97, 000 acres. Big Thicket was the first Preserve in the National Park System established October 11, 1974, and protects an area of rich biological diversity. A ...