After traveling to all 50 states, I think these 6 state parks are some of the country's most incredible hidden gems

• Letchworth State Park in New York and Matthiessen State Park in Illinois have gorgeous waterfalls.
• Utah’s Kodachrome Basin State Park feels like stepping into another world.

Devil’s Lake State Park in Wisconsin has something for everyone.

Just 9 miles outside Boulder, the park is known for its dramatic canyon views, rock climbing, and scenic hiking trails. Its towering golden sandstone cliffs make it one of the top climbing destinations in the US, with over 500 routes.

Visitors can also choose to cross-country ski or snowshoe in the winter months.

This story was originally published on May 5, 2025, and most recently updated on October 13, 2026.