16inches by 20 inches Behold the Great National Parks. This is the complete list (as of 2023) of all 63 National Parks. Each park has a little circle for you to check off, documenting how adventurous you are. Make your friends jealous. Heck, why not even check off a few obscure ones like Kobuk National Park or American Samoa. They will think you are super cool. Each park was lovingly drawn on the back of a tortoise by me (Isaac Dushku) and colored by Audrey Morgan. Why a tortoise? I thought you'd never ask. The poster is 16 inches by 20 inches printed on sturdy paper.