A collection of advertising posters created in the 1930s and 40s through the Works Progress Administration, a New Deal program, depicted heroic vistas of national parks and monuments, including Zion, Yosemite, Glacier and Grand Canyon. But few records were kept, and through the years, most of the posters were lost. The National Park service archive didn’t have a single original. A former park ranger is on the hunt to complete a collection of posters by artists commissioned by the government celebrating national parks.

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