At Bryce Canyon National Park (in Southern Utah), erosion has shaped colorful Claron limestones, sandstones, and mudstones into thousands of spires, fins, pinnacles, and mazes - collectively called "hoodoos". Hoodoos formed over thousands of years by the same processes that form the features of surrounding parks. Dolomite, limestone and siltstone are very hard and form the protective caprock on most of the spires. Mudstone is the softest rock in a hoodoo and is easily identified because it forms the narrowest portion of the pinnacles. As mudstone moistens it erodes easily and will run down the sides forming a stucco or protective coating. Every time it rains the stucco is renewed. Eolian or wind forces erode at slow rates. If wind does not erode the stucco layer fast enough it will renew before Eolian erosion affects the rock. For this reason wind has little to no affect on hoodoo formation or destruction.