Going underground at Wind Cave National Park
What wonders are hiding underground? Producer Marc Sanchez finds out what it’s like to explore one of the biggest networks of caves in the world — and scientists are still discovering unmapped branches. Marc will show us the wonders hidden underground at this national park in South Dakota and how tricky it can be to brave uncharted territory with only a headlamp to light the way.
Listen to the rest of our series on the science of the National Parks:
This episode was originally published on Dec. 26, 2016. You can listen to that version here: