Mammoth Cave National Park’s Heritage Trail, Old Guides Trail, and visitor center pedestrian bridge will be closed for nine months starting Monday, January 6, to allow for work to complete the Heritage Trail Rehabilitation Project that will improve the trail’s visual profile, enhance the visitor experience, and maintain wheelchair accessibility while reducing the park’s annual maintenance requirements.

Mammoth Cave National Park is proposing charging entrance fees to children under six for the first time.

There are quite a few cave-centric units within the National Park System. While these parks provide interesting landscapes both above and below ground, they really are all about the caves. So this month’s Traveler quiz and trivia piece is all about those cave park units.