Did you get stamped at Mammoth Cave National Park? The Passport To Your National Parks® encourages visitors to explore the more than 400 National Park Service sites across the country and find out what makes each one special. Celebrate your awe-inspiring experience of the vast cave systems in Mammoth Cave National Park with a pin from the Passport Collection!
- 1’’ diameter
- Rubber stud backing
- Collect more Passport pins from your favorite parks on eParks.com