Program 579: Kerouac's Firewatch; Erosion; USA National Parks

Author and naturalist Terry Tempest Williams tells us how she sees the processes of erosion at work in these hard-to-define times we're living in. Then writer Dan Richards describes what it's like to hike to the Cascade Mountain lookout where Jack Kerouac lived for two months. And writer and photographer Becky Lomax shares more of her favorite national park experiences.

• Dan Richards, RLF Fellow at Bristol University, and author of "Outpost: A Journey to the Wild Ends of the Earth" (Canongate)
• Terry Tempest Williams, author of "Erosion: Essays of Undoing" (Sarah Crichton Books)
• Becky Lomax, author of the "National Parks USA" guidebook (Moon)

• Dan Richards, author of "Outpost," includes photos of sites he encountered on his hike up Desolation Peak in an article he wrote for the Telegraph.
• The latest book by Terry Tempest Williams is called "Erosion: Essays of Undoing."
• Becky Lomax has compiled detailed information about all 59 of the U.S. National Parks in the Moon guidebook "USA National Parks."
• Caller Tricia from Madison, Wisconsin shares the photo of her reaching the top of Morro Rock, in Sequoia-King's Canyon National Park.