Protected status records whether a formation is legally set aside from development. Wikipedia notes that the Grand Canyon "and adjacent rim are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon-Parashant National Monument" and several tribal reservations. Browsing by protected status shows which formations a visitor could see preserved and which have no such protection.
Facts
Comparison
Formation OriginA vent or fissure allowing hot lava, ash and gases to escape from a magma chamber below the surface. 1 UNESCO Biosphere Reserve
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Sources
1. Wikipedia: Volcano
WikipediaVolcano, lead sectionQuote, Volcano, lead section
A volcano is a vent or fissure in the crust of a planetary-mass object that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.
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