1. 559

    South Rim of the Grand Canyon.

     
  2. 2907

    Rainbow in the Grand Canyon

     
  3. 243

    Haleakala, ‘66.

     
  4. 885

    Haleakala National Park, Hawaii (1966).

     
  5. 143

    Hot springs.

     
  6. 1162

    Yellowstone, 1972.

     
  7. 255

    A member of the Sierra Club, founded by John Muir to spur exploration and conservation, takes a song break (1971).

     
  8. 627

    Indian Rhino (1976).

     
  9. 64

    Giraffe (1970).

     
  10. 3441

    Canyonlands.