When a young park ranger was asked by his supervisor to clean out an old barn at Grand Teton National Park in the early 1970s, he discovered a dusty and stained blue, grey, and green poster inviting folks to "Meet the Ranger Naturalist at Jenny Lake Museum. This young ranger, Doug Leen, soon discovered that it was one in a series of posters created by the Works Progress Administration to put artists to work and promote visitation to the national parks during the late 1930s. This week the Traveler's Lynn Riddick sits down with Doug to discuss his newly released book documenting his life-long journey to find the original WPA posters and protect them.