National Geographic and University of Wyoming writer in residence Mark Jenkins, was invited on an expedition deep into the jungles of Vietnam to explore what would turn out to be the biggest cave on earth: Hang Son Doong.

He’s ready to share his adventures tonight at 5:30 in the Center For Conferences and Institutes Union Pacific Centennial Rooms at Laramie County Community College in Cheyenne. It’s Free.

His Facebook page says:

“Exploring this cave was so treacherous and difficult, that the team actually lived underground for days to complete the first descent. The acknowledged Mt. Everest of caves, Hang Son Doong is so vast a skyscraper can fit inside!”

More: 307-766-3415.

More From 101.9 KING-FM