OFF THE MAP
America's many national parks can give visitors a breath of fresh air — or suffocate them with crowds. All-stars such as Yosemite and the Grand Canyon attract millions of people a year; Great Smoky Mountains National Park has seen more than 10 million visitors in a year. The incredible, underrated parks on this list welcome as few as 14,000 each year. Some are less popular because a remote location makes them harder to access, or their rugged terrain scares away newbies. Entrance fees are typically lower at these overlooked parks, and four of five fee-free days remain in 2019, while many parks don't charge an entrance fee. The Outdoors Alliance for Kids says Interior Secretary Ryan Zinke has also renewed the Every Kid in a Park program giving fourth-graders and their families free admission.