Yellowstone sits on a roiling supervolcano, which fuels all of its geothermal wonders. But now, USGS scientists have discovered it also sits on a vast reservoir of 2-billion-year-old helium. All that helium seeps through the ground to the surface. Slatehas more:
Apparently, helium has been pouring from Yellowstone for the last 2 million years, so it’s possible that those soprano howls you hear every year should really be baritones. And if you go camping in the backcountry and notice your voice going all Keebler elf, well, now you know why.