As devastating as the Mount St. Helens eruption was in 1980, the rejuvenation of the landscape has been just as riveting.

Ninety years after it was first blazed across the roof of Grand Teton National Park, the Teton Skyline Trail, better known today as the Teton Crest Trail, is getting some much needed repairs.

It was five years ago, on October 18, 2015, that a storm of historic dimensions, pounded Death Valley National Park and sent torrents down through Grapevine Canyon that uprooted utilities, swept away sections of roads, and flooded buildings at Scotty's Castle. While much has been done to repair the damage, it's expected to take until the end of 2022 to have the iconic park destination ready to welcome the public back for regular tours of the grounds and castle.

When you go on a wild cave tour at Mammoth Cave National Park, shimmying around on your hands and knees, you'd never think to watch for sharks. Nor when you explore Petrified Forest National Park and marveled at the rock-solid slabs of wood, you won't sense a need to watch for any burrowing reptiles. But, as it turns out, those creatures did live in those landscapes...once upon a time.