National parks closest to Union County, MS

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- Distance: 1,153 miles
- Park area: 70,446.89 acres

#25. Theodore Roosevelt National Park (North Dakota)
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- Distance: 1,106 miles
- Park area: 52,485.17 acres

#24. Mesa Verde National Park (Colorado)
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- Distance: 1,077 miles
- Park area: 30,779.83 acres

#23. Black Canyon of the Gunnison National Park (Colorado)
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- Distance: 1,005 miles
- Park area: 146,344.31 acres

#22. White Sands National Park (New Mexico)
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- Distance: 1,001 miles
- Park area: 265,807.25 acres

#21. Rocky Mountain National Park (Colorado)
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- Distance: 996 miles
- Park area: 33,970.84 acres

#20. Wind Cave National Park (South Dakota)
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- Distance: 986 miles
- Park area: 218,222.35 acres

#19. Voyageurs National Park (Minnesota)
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- Distance: 961 miles
- Park area: 242,755.94 acres

#18. Badlands National Park (South Dakota)
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- Distance: 954 miles
- Park area: 107,341.87 acres

#17. Great Sand Dunes National Park (Colorado)
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- Distance: 936 miles
- Park area: 86,367.10 acres

#16. Guadalupe Mountains National Park (Texas)
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- Distance: 933 miles
- Park area: 571,790.30 acres

#15. Isle Royale National Park (Michigan)
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- Distance: 913 miles
- Park area: 46,766.45 acres

#14. Carlsbad Caverns National Park (New Mexico)
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- Distance: 908 miles
- Park area: 801,163.21 acres

#13. Big Bend National Park (Texas)
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- Distance: 813 miles
- Park area: 172,971.11 acres

#12. Biscayne National Park (Florida)
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- Distance: 794 miles
- Park area: 1,508,938.57 acres

#11. Everglades National Park (Florida)
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- Distance: 773 miles
- Park area: 64,701.22 acres

#10. Dry Tortugas National Park (Florida)
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- Distance: 648 miles
- Park area: 199,223.77 acres

#9. Shenandoah National Park (Virginia)
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- Distance: 618 miles
- Park area: 32,571.88 acres

#8. Cuyahoga Valley National Park (Ohio)
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- Distance: 504 miles
- Park area: 7,021 acres

#7. New River Gorge National Park (West Virginia)
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- Distance: 504 miles
- Park area: 15,349.08 acres

#6. Indiana Dunes National Park (Indiana)
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- Distance: 475 miles
- Park area: 26,476.47 acres

#5. Congaree National Park (South Carolina)
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- Distance: 321 miles
- Park area: 522,426.88 acres

#4. Great Smoky Mountains National Park (North Carolina, Tennessee)
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- Distance: 293 miles
- Park area: 192.83 acres

#3. Gateway Arch National Park (Missouri)
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- Distance: 247 miles
- Park area: 54,011.91 acres

#2. Mammoth Cave National Park (Kentucky)
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- Distance: 232 miles
- Park area: 5,554.15 acres

This story features data reporting by Karim Noorani, writing by Mike Taylor, and is part of a series utilizing data automation across 3,119 counties.

#1. Hot Springs National Park (Arkansas)
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