Glacier Caves: Mt. Hood’s Secret World

Mountaineers Brent McGregor and Eddy Cartaya invite the Oregon Field Guide crew on an expedition to film and explore the largest known glacier cave system in the lower 48 states – located on the Northwest face of Mount Hood in Oregon.

Produced by Ed Jahn and Amelia Templeton for Oregon Public Broadcasting.
Directors of Photography: Andy Maser and Todd Sonflieth
Additional Video and Support: Hayden Peters
Editor: Todd Sonflieth