Season 21, Episode 5
Forest Thinning; Oregon Cave Cleaning; Portland Stairways
Episode: Season 21, Episode 5
Forest Thinning - An unusual alliance of folks are working together to help protect our forests. Oregon Cave Cleaning - See what incredible steps are taken to give the Oregon caves a good cleaning. Portland Stairways - Explore the fascinating history of Portland's hidden and not-so-hidden public stairways.
Episode Expires: Sun 28 Oct 2012
TV Rating: TV-G