South Dakota has some pretty incredible geological wonders. From the majestic spires of The Needles to Jewel Cave, there are plenty of jaw-dropping natural attractions here, ones you have to see with your own eyes to believe. One of our most puzzling natural wonders can be somewhat elusive, but if you're lucky you'll get a look. Check out the Burning Bluffs in South Dakota! You'll want to add this one to your bucket list.
Lewis and Clark first noted the Burning Bluffs along the Missouri River in 1804. The Burning Bluffs aren't actually on fire, though the smoke sure makes them appear to be.
Captain Lewis undertook a few "scientific" experiments at the Burning Bluffs, including both tasting the minerals and inhaling the sulfurous smoke. Apparently, his experiments made him sick, and he spent a few days recovering.
So, what's the cause of this South Dakota geological wonder (although some may find it an oddity instead)? The Carlile Shale that lines the banks of the Missouri River contains a large amount of iron sulfide. When the iron sulfide reacts with oxygen and water, it releases heat, creating smoke.
In addition to iron sulfide, Carlile Shale also contains clay minerals, which retain water...which, in turn, spurs the exothermic reaction even more. This is one of the most incredible and fascinating natural wonders in South Dakota.
You're most likely to see the Burning Bluffs during the summer.
This geological oddity is increasingly rare but is usually seen near the Platte-Winner Bridge, and anywhere between Fort Randall and Chamberlain.
Have you ever seen the Burning Bluffs in South Dakota? Have you visited other natural wonders in South Dakota? We would love for you to share your photos and tell us all about your experiences!
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