The Jay Cooke State Park is located about 10 miles southwest of Duluth, with the St Louis River running through it. It is loaded with 50 miles of hiking trails, tons of overlooks to the rocky gorges and waterfalls. The park was originally named after Jay Cooke, who was a major financier of the Northern Pacific Railway. Fun fact: the Willard Munger State Trail runs through the entire park. Definitely Minnesota’s most beautiful state park.