@CNN: A 15,000-acre area in northwestern Indiana is the United States’ newest national park https://t.co/JGmpkiu8Ba https://t.co/CRG17NcBbM

@CNN: A 15,000-acre area in northwestern Indiana is the United States’ newest national park https://t.co/JGmpkiu8Ba https://t.co/CRG17NcBbM