A United States Post Office is located behind the Caver's Camp Store near the Mammoth Cave Campground. (270)758-2311.
The postal code for Mammoth Cave is 42259.
Post Office Hours:
Did You Know?
Mammoth Cave National Park contains more than 70 miles of backcountry trails through forested Kentucky hills for hikers, horseback riders, and bicyclists. Several frontcountry trails lead to special places like Cedar Sink, Sand Cave, and Turnhole Bend.