There are two theories attempting to explain Upheaval Dome. The more traditional explanation is that the salt layer below the accumulated sediment pushed upwards. The more recent proposal is that a meteor strike 60 million years ago caused the ¾ mile deep crater.
The trail has many steps carved into the rock to make the walk easier. Even with the relatively easy footing there are some ups and downs over the mostly bare sandstone that will make you stop to catch your breath. Most of the attention is directed toward the crater, but there are also scenic views on all sides. There is the 8.3 mile Syncline Valley Loop Trail that circles the Upheaval Dome and starts at the same point as the Upheaval Dome Overlook Trail.
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