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Mushroom Rock is an excellent example of the geological concept of differential erosion. The hardened capstone is protecting softer underlying sediments, in this instance forming a distinctive mushroom-shaped outcropping. A detailed Gigapan of Mushroom Rock can be found at: www.gigapan.org/viewGigapan.php?id=2...
Mushroom Rock is an iconic natural feature on the Great Plains of western Kansas. The Fremont Trail passed north of here and many visitors have left their mark. A wider view of Mushroom rock can be found at: www.gigapan.org/viewGigapan.php?id=2592