Wisconsin Ice Age Trail: Wisconsin' scarier landscape (think lakes, river valleys, rolling hills, and ridges) was formed years ago with the Ice Age. See the evidence of this part of Wisconsin's history on the mile Ice Age National Scenic Trail.
Glen Canyon is a canyon that is located in southeastern and south central Utah and northwestern Arizona within the Vermilion Cliffs area. It was carved by the Colorado River. A reservoir, Lake Powell, was created by the Glen Canyon Dam