Most arches have a single opening but the one to the right has three!
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| Arches National Park, Utah | |
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| Wind and precipitation wear down soft layers of rock under a harder layer of rock. In north-western Utah, this must be where the rock layers are just right for the erosion to occur. Most arches have a single opening but the one to the right has three! |
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| This feature is just like the tent rocks in New Mexico where a harder rock on top packs down the softer rock below. All of the softer rock not under the harder rock erodes away. | ||||||||||||
| Delicate Arch is the one featured on most Arches National Park literature. |
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