What U.S. National Park once competed to host the Olympic Games? And can the color of gray hair be reversed naturally? Hear the answers on The Off Ramp with Bob & Marcia Smith. (Graphic: National Park Service) https://chrt.fm/track/E1F5AD/http://feeds.soundcloud.com/stream/1109234740-theofframp-103-stuff-nonsense-trivia.mp3
