Season 27, Episode 9

Oregon Field Guide assembles its largest, most complex expedition ever to take you on an unparalleled adventure of discovery. They travel deep into the wilderness to explore and bring back the first images of a hidden geologic wonder right here in Oregon.

Related Content: Go Behind The Scenes Of OPB’s Toughest Shoot

Field Guide heads into the Oregon wilderness to document a geologic wonder.

About Valhalla

Get an unprecedented glimpse inside Valhalla, Oregon’s uncharted gorge. Watch the full Oregon Field Guide special online now.