Discover this 2.3-mile out-and-back trail near St. George, Utah. Generally considered a moderately challenging route.
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The hike from the parking area to the lava tube takes 5-10 minutes, and the tube itself is only about 50 feet long. If visitors desire a longer trip, they are welcome to wander around anywhere they want in the volcano field.
Lava cools very quickly at first and forms a thin crust that insulates the interior of the lava flow. As a result, basaltic lava flows can form crusts that are thick enough to walk on in 10-15 minutes but the flow itself can take several months to cool!