Knute Berger shares the story of the Northwest's largest river, from its headwaters in Canada to the threat that climate change poses to its watershed.
George Francis Train, an 1800s influencer, once convinced a newspaper to sponsor him on a record-breaking trip around the globe. Knute Berger explains.
The former Secretary of the Interior helped establish the Pacific Crest Trail, four national parks – including one in Washington – and many groundbreaking environmental laws.
Asahel Curtis shot thousands of images in the early 20th century. Knute Berger talks about the effort to share them with the public for the first time.