579a Kerouac’s Firewatch; Erosion; USA National Parks

British travel writer Dan Richards describes his hike to the remote post in Washington's North Cascades where Jack Kerouac spent two months as a fire lookout. Then author and naturalist Terry Tempest Williams describes how the processes of erosion define the Utah desert landscape she calls home, and how understanding them can provide a helpful perspective on our civic and social territory, as well as our physical. And photographer and guidebook writer Becky Lomax shares more of her favorite experiences in America's national parks.