Now Playing:


Oregon Field Guide

Lava Caves

Ken Siegrist of the Bureau of Land Management surveys the lava fields of south central Oregon searching for unknown caves hidden in the landscape. Follow him as explores one lava tube cave to learn more about its ecosystems and marvel at their geologic wonders.

First Broadcast: 2007
Producer: Jim Newman

More Oregon Field Guide

Why Dufur?

OPB | Oct. 20, 2016

Columbia River Bar Pilots

OPB | Oct. 20, 2016

Mecate Rope Makers

OPB | Oct. 13, 2016

More OPB

Follow Oregon Field Guide

Send Oregon Field Guide A Message

Part of Episode

Lava Caves; Zoo Vet; Berry Botanic Garden (1904)

Oregon Field Guide: Episode #1904
Original Broadcast: October 25, 2007