Western Central Till + Lowlands, Illinois
Western Upper Peninsula, Michigan
Shenandoah National Park
Adirondacks, New York
Adirondacks, New York
Shenandoah Mountains + Valleys, Virginia
Adirondacks, New York
Catskill Mountains, New York
Badlands National Park
Catskill Mountains, New York
Catskill Mountains, New York
Allegheny Plateau, West Virginia