Poster of Cast and Crew in Oregon Field Guide - Discovering Valhalla: Oregon's Hidden Gorge (Season 27 - Episode 9) - Discovering Valhalla: Oregon's Hidden Gorge

Oregon Field Guide - Season 27 - Discovering Valhalla: Oregon's Hidden Gorge (Episode 9)

Plot: Oregon Field Guide's expedition into the Oregon wilderness in search of a possibly undiscovered geologic wonder.
Episode Aired On:
Thursday, February 4 2016
9 years ago