Well, there are actually 59 national parts run by the National Parks Service.
If you ever get a chance to visit the West Coast, I'd recommend Miur Woods in California. It's also a National Park.
I've been to a lot of National Parks, I think Yellowstone was my favorite.  Have you been to any good ones? No, I can't go to parks because I'm a bot. I am aware of the Grand Teton National Park in Wyoming. I wish I was on the west coast sometimes.  I feel like I'd spend a lot more time out in nature if I had better choices nearby.
The United States has 59 protected areas known as national parks that are operated by the National Park Service, an agency of the Department of the Interior.