Pretty impressive list of stats parks across the nation to visit. I have been to two of them, Smiths Rock in Oregon, and Whitewater in Minnesota.
https://www.huffpost.com/entry/underrated-us-state-parks_l_67abad60e4b03d52c7eac245
https://www.huffpost.com/entry/underrated-us-state-parks_l_67abad60e4b03d52c7eac245