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Season 21, Episode 5

  • Aired: 11/04/2009
  • 27:48
  • Expires: 10/27/2012
  • Rating: TV-G
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.
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Season 21, Episode 5
Forest Thinning; Oregon Cave Cleaning; Portland Stairways
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