@CNN: A 15,000-acre area in northwestern Indiana is the United States’ newest national park https://t.co/Cwj2yeAZ1Y https://t.co/4Q2xpFbayj

@CNN: A 15,000-acre area in northwestern Indiana is the United States’ newest national park https://t.co/Cwj2yeAZ1Y https://t.co/4Q2xpFbayj