Mushroom rock
![Mushroom rocks in Egypt](/Images/godic/202501/28/Weisse_Wüste0343.jpg")
![Mushroom rocks in Timna Park, Negev, Israel](/Images/godic/202501/28/Timna_50343.JPG")
![A mushroom rock west of Moab, Utah](/Images/godic/202501/28/MoabHoodoo0343.JPG")
![The Kelchstein (Chalice Rock) near Oybin, Lusatian Mountains, Germany](/Images/godic/202501/28/Kelchstein_im_Zittauer_Gebirge,_Sachsen,_Deutschland_-_200606210343.jpg")
A mushroom rock, also called rock pedestal or a pedestal rock, is a naturally occurring rock whose shape, as its name implies, resembles a mushroom. The rocks are deformed in a number of different ways: by erosion and weathering, glacial action, or from a sudden disturbance. Mushroom rocks are related to, but different from, yardang.