New Fissure Near Yellowstone Supervolcano Causes Teton National Park Closure Prison Planet.com Posted on July 18, 2018 Posted in Aggregated No Comments Tagged with Sci Tech Mac Slavo | A 100-foot-long fissure near the Yellowstone supervolcano has prompted the closure of parts of Teton National Park. Share this:Share Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Share on LinkedIn (Opens in new window) LinkedIn Email a link to a friend (Opens in new window) Email