1908, these trips traveled east of Gary to Mt. Tom. This is the highest of the Indiana Dunes. These hikers joined together as the Prairie Club, with Jens Jensen and Frank’s brother Dudley as its first directors. In 1913, the club built a beach house north of Mt. Tom. This became the focal point for a movement to create a national Dunes park. Jens Jensen founded Friends of Our Native Landscape in 1913, with the purpose of protecting the natural landscape both for public use and as sanctuaries for plants and animals. Dudley was active in the second decade of the century: in 1915 he won the Art Institute of Chicago’s Butler Prize. The Art Institute also presented a show of his dunes pictures in 1918. Critics were generally complimentary. A year later the Art Institute presented Dudley with the Cahn Prize for his painting The Silent Sentinels. During these years he was unable to devote himself to painting full-time because he ran an art supply store, but he gave up the business in 1921 to spend all of his time painting in the dunes. While Dudley maintained his residence in the city, by 1921 he had designed and built a log cabin studio in Indiana, so that he could "bring the Dunes indoors." (Dudley to Love, 1977). From this primitive base the artist painted the surrounding area, capturing the quiet evanescence of its multi-faced simplicity. Titles such as Winds in the North or Soft Shadows across the Sands or Under Changing Skies, Dunes indicate his concern not only with the constantly changing picturesque characteristics of the scene, but also with the extreme effects of the Lake Michigan atmosphere. Although Dudley exhibited little on the national level, he was very active in the Midwest and became known as the "Dunes Painter" or "Painter of the Dunes." To rally support for the Dunes movement, the Pairie Club staged an outdoor pageant in the spring of 1917. Dudley painted The Dunes Pageant, set in a natural amphitheater of a blowout. From this start, his works were nearly all based upon the scenery of the dunes. In May 1918, he hosted a one-man show at the Art Institute with 30 paintings. The center of the exhibit was his largest landscape, The Land of Sky and Song. In 1921, he was awarded the Art Institute’s prestigious Logan Medal for Duneland. In 1923 with the