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Around six to eight million years ago, volcanoes spewed molten rock, which trapped gas inside as it hardened. Over time, as the gas expanded within the rock and reacted with minerals that seeped through its porous exterior, crystals formed inside. The ancient Lake Bonneville then deposited these rocks, called geodes, in what is today Utah’s West Desert.
Anyone with a shovel can come to the geode beds to search for buried geologic treasure. Geodes and geode fragments, each with unique quartz crystals, abound.
It can be quite a trek to get there but the area is teeming with life, from desert globemallow to antelope.
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Know Before You Go
The nearest gas station is an hour and a half away. Bring your own tools, sun protection, and lots of water. It's important as well to stay on established paths to avoid disturbing wildlife.
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Published
September 29, 2025