Top 10 Least Visited National Parks in US

10. Great Basin National Park

9. Dry Tortugas National Park

8. Kobuk Valley NP 

7. Wrangell-St. Elias NP & PRES 

6. North Cascades NP 

5. Katmai NP & PRES 

4. Isle Royale NP 

3. Kobuk Valley NP 

2. National Park of American Samoa 

1. Gates of the Arctic NP & PRES