Task #22: Visit all the National Parks in the continental United States - UPDATE

Updated 1/12/11

Here's info on the original post which explains why there might be some missing.

Visited But Don't Remember Clearly and/or Would Like To Revisit: (5)
Acadia (Maine), Badlands (South Dakota), Black Canyon (Colorado), Bryce Canyon (Utah), Crater Lake (Oregon)

Visited and Remember Clearly and/or Visited Post-College: (10)
Death Valley National Park (California), Glacier National Park (Montana), Grand Canyon (Arizona), Grand Teton (Wyoming), Great Smoky Mountains (North Carolina/Tennessee), Joshua Tree (California), Mesa Verde (Colorado), Rocky Mountains (Colorado), Yellowstone (Wyoming), Hot Springs (Arkansas)

Still Need to Visit: (30)
Arches (Utah), Big Bend (Texas), Biscayne (Florida), Canyonlands (Utah), Capitol Reef (Utah), Carlsbad Caverns (New Mexico), Channel Islands (California), Congaree (South Carolina), Cuyahoga Valley National Park (Ohio), Dry Tortugas (Florida), Everglades (Florida), Great Sand Dunes (Colorado), Guadalupe Mountains (Texas), Isle Royale (Michigan), Kings Canyon (California), Lassen Volcanic (California), Mammoth Cave (Kentucky), Mount Rainier (Washington), North Cascades (Washington), Olympic (Washington), Petrified Forest (Arizona),. Redwood (California), Saguaro (Arizona), Sequoia (California), Shenandoah (Virgina), Theodore Roosevelt (North Dakota), Voyaguers (Minnesota), Wind Cave (South Dakota), Yosemite (California), Zion (Utah)

That's quite an impressive list to still accomplish. I'll probably aim for "still need to visit" first; followed by the ones I'd like to re-visit.