You've included Lake Meade NRA with Grand Canyon. Grand Canyon is entirely in Arizona. Isle Royale is part of Michigan, not Minnesota. Sleeping Bear Dunes & Pictured Rocks aren't National Parks. You're missing Congaree, Great Basin, Indiana Dunes, Cuyahoga Valley, Acadia, and Theodore Roosevelt. City of Rocks/Craters of the Moon in Idaho (whichever it is) isn't a National Park.
I think that's all the mistakes I spotted.