Oh and Hawaii Volcanoes. . .

I've only ever been to the Nicolet National Forest (:C) unless if the area around the Liberty Bell/Independence Hall is a national park.

I suspect that I have been to some and didn't realise I was at a National Park.

I know I've been to
Harper's Ferry (because I got engaged there)
Joshua Tree
Antietam

um...

Only the Grand Canyon.

Lift of all of them on Wikipedia

This time last year, we went to the Olympic National Forest and stayed at the lodge near the Quinalt Rainforest. Fabulous.

I've been to the Grand Canyon and Joshua Tree, and Harper's Ferry, and dozens of battlegrounds, which are national parks.

Yellowstone. (Part of the former epic student exchange from my middle school that was sadly cancelled. I wrote several letters to local newspapers, administrators, and the school board about it. But oh no, it didn't have 'educational value'. Bunch of fuckfaces.)

Rocky Mountain (at least twice)
Yellowstone
Mammoth Cave
Great Smoky Mountains
Theodore Roosevelt

Short list considering I've been in every state but AK, HI, SD, NM, TX, and OK. But I've been to numerous National Monuments, National Historic Park, and National Register locations:

Dinosaur National Monument
Little Bighorn Battle NM
Muir Woods NM
Statue of Liberty NM

National Historic Parks:
Yorktown Battlefield (I think) in Colonial NHP
Cumberland Gap NHP
Independence NHP
Natchez NHP
San Francisco Maritime NHP (it was still the SF Maritime Museum then)
Saratoga NHP

National Historic Sites (that I'm sure of):
Ford's Theatre
Fort Point
Hopewell Furnace
Jimmy Carter (farm, before designation)
Lincoln Home
Martin Luther King, Jr. (before designation)

National Military Parks:
Chickamauga and Chattanooga
Shiloh
Vicksburg

I could go on. My dad being a professional historian we often included museums and such on trips so he could make them tax-deductible (before 1986 it was easier).

J Tree
Redwood
Sequoia
Yosemite
Carlsbad
Crater Lake
Yellowstone

Grand Canyon
Redwood or Sequoia - not sure which
Crater Lake

Wow, not many. But I have been to other parks in the National Parks System:

Montezuma Castle
Tuzigoot
Cabrillo
Golden Gate
Point Reyes
Jefferson National Expansion Memorial
Statue of Liberty
Lewis and Clark
Padre Island
San Antonio Missions

And there are probably a few I don't remember.

Acadia
Petrified Forest
Grand Canyon
Zion
Yellowstone
Grand Tetons
Badlands

...not nearly enough (but some great ones!). I'd like to see them all eventaully.

This list may not be all-inclusive:

Channel Islands
Death Valley
Joshua Tree
Kings Canyon
Redwood
Sequoia
Yosemite
Everglades
Hawaii Volcanoes
Yellowstone
Arches
Zion

also the Grand Canyon

Grand Canyon
Petrified Forest
Zion Canyon
Kings Canyon
Death Valley
Sequoia
Dry Tortugas (pics!)
Everglades
Biscayne
Great Smoky Mountains
Carlsbad Caverns

(I thought Monument Valley was a national park, but apparently not.)

Oh oh, something I excell at, driving far distances to see cool things.

Grand Canyon
Death Valley
Redwood
Death Valley
Mesa Verde
Rocky Mountain
Everglades
Mammoth Cave
Yellowstone
Great Smoky Mountain
Theodore Roosevelt
Bad Lands
Capital Reef
Grand Teton

Um, only Acadia and Redwood. But I often go to state or county parks.

Watching the online broadcast now. Psst: this park thing is totally Socialist.

Only Yosemite and Denali. I think. It's possible I've been to the Everglades National Park; I've been "to the Everglades," but I'm not sure if that automatically means I was in the park.

When I was growing up my parents were pretty big on driving tours of national parks, so:

Everglades
Biscayne
Yosemite
Yellowstone
Grand Teton
Grand Canyon
Great Smoky Mountains
Denali
Wrangell-St. Elias
Kenai Fjords
Mount Rainier
Glacier (FUCKING GORGEOUS AND EVERYONE NEEDS TO GO HERE NOW)

Also Banff, Jasper, and Waterton Lakes in Canada. And we may have driven through Sequoia or Redwoods, but I can't remember exactly.

Just this Saturday, Mt. Baker National Forest, up to the ice caves with the boy.

Aside from the smattering of state parks, that's about it.

Theodore Roosevelt inaugural site (well, it's around the block from me, and next door to my bank, so I kind of have to... haven't been inside since it was remodeled, though)
Women's Rights historic park
Statue of Liberty
JFK historic site
Boston national historic park
most of the DC stuff (which is like a half dozen "parks" in several square blocks...)

Lot of state parks in my area, though.

I lied; I have never been to the Everglades. We were in Okeefenokee, not the Everglades.

Arches*
Badlands*
Big Bend*
Bryce Canyon*
Carlsbad Caverns*
Death Valley
Everglades
Grand Canyon*
Grand Teton*
Great Smoky Mountains
Joshua Tree
Mesa Verde*
Petrified Forest
Saguaro
Shenandoah
Yellowstone*
Zion*

Maybe
Guadalupe Mountains*

*All these in one awesome month-long road trip after graduating from college in 92 (some I've been to before or since)

Grand Canyon National Park, AZ
Santa Monica Mountains National Recreation Area, CA
Cape Hatteras National Seashore, NC
Fort Raleigh National Historic Site, NC
Wright Brothers National Memorial, NC
Crater Lake National Park, OR
Lewis and Clark National Historical Park, OR
Bryce Canyon National Park, UT
Ebey's Landing National Historical Reserve, WA
Fort Vancouver National Historic Site, WA
Lake Chelan National Recreation Area, WA
Mount Rainier National Park, WA
North Cascades National Park, WA
Olympic National Park, WA
San Juan Island National Historical Park, WA
Glacier Bay National Park, AK
Sitka National Historical Park, AK

The irony is, I am a total "indoor kid".