Kenneth Dupee Swan (1887–1970), more commonly known as K.D. Swan, was an American nature photographer in the early part of the 20th century. During his career in the USDA Forest Service (1911–1947) he took many picture of the American Northwest. Swan captured the face of public lands, revealing its wildness and value to the American public. His messages of long ago still emanate from his images - the value of conserving public lands and the joy of living in magnificent wild places.