Name: An Inside Look at Mexico’s Crystal Caves Featured on National Geographic
Uploaded: 2010-12-15T00:00:00-07:00
Description: Presenter: Angie Lucht | Webinar | National Geographic went inside one of the greatest natural marvels on the planet - a giant crystal cave described as Superman's Fortress, with magnificent crystals up to 36 feet long and weighing 55 tons. Our presenter, Angie Lucht, was one of the four cavers/mountain rescuers on the team that

An Inside Look at Mexico’s Crystal Caves Featured on National Geographic

Presenter: Angie Lucht | Webinar | National Geographic went inside one of the greatest natural marvels on the planet – a giant crystal cave described as Superman’s Fortress, with magnificent crystals up to 36 feet long ...