These are the National Parks in the US and the order we visited them.

Hawaii National Park

Haleakala National Park

American Samoa National Park

Pinnacles National Park

Gateway Arch National Park

Indiana Dunes National Park

White Sands National Park

New River Gorge National Park

Denali National Park

Gates of the Arctic National Park

Glacier Bay National Park

Katmai National Park

Kenai Fjords National Park

Kobuk Valley National Park

Lake Clark National Park

Wrangell-St. Elias National Park

I​sle Royale National Park
Voyageurs National Park
Cuyahoga Valley National Park
Acadia National Park
​Shenandoah National Park
Mammoth Cave National Park
Great Smokey Mountains National Park
Congaree National Park
Everglades National Park
​Biscayne National Park
Dry Tortugas National Park
Virgin Islands National Park
Hot Springs National Park
Saguaro National Park
Petrified Forest National Park
Grand Canyon National Park (south rim)
Death Valley National Park
Joshua Tree National Park
Channel Islands National Park
Sequoia National Park
Kings Canyon National Park
​Yosemite National Park

The US National Parks we haven't visited...yet.

Lassen Volcanic National Park
Redwoods National Park
Crater Lake National Park
Mt. Rainier National Park
Olympic National Park
North Cascades National Park
Glacier National Park
Theodore Roosevelt National Park
Badlands National Park​
Wind Cave National Park
Yellowstone National Park
Grand Teton National Park
Rocky Mountain National Park
Great Basin National Park
Zion National Park​​​
Bryce Canyon National Park
​Capitol Reef National Park
Arches National Park
Canyonlands National Park
Mesa Verde National Park
Black Canyon of the Gunnison National Park
Great Sand Dunes National Park
Carlsbad Caverns National Park​

Guadalupe Mountains National Park
​Big Bend National Park

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