The border between Minnesota and Wisconsin here was formed by a combination of molten lava and melting glaciers over the past billion years. The St. Croix River Valley's hugely popular public access site features hikes along the bluffs and down to the river, and ways to see these stunning rock cliffs from water level.
Founded more than a century ago and expended during the Great Depression, this gem in western Minnesota features hiking, biking, boating, beaching and abundant wildlife, along with a quartet of camping options.
Pulling up the whole plant — this species grows as a free-floating leafy stem less than a foot long — I found the namesake bladders. Smaller than an apple seed and of a similar shape, the translucent capsules sparkled in the sun. That beauty is deadly.