July 4, 2015 This week on Sierra Club Radio:Ben Montgomery on his book Grandma Gatewood's Walk: The Inspiring Story of the Woman Who Saved the Appalachian TrailHenry Nichols, author of The GalapagosAvital Andrews shares green tips for the 4th of July weekend Related Topics: hiking, see all stories Up Next Próximo Artículo How to Camp for FreeByPor Linnea Harris Apr 9 2026 2026-04-09