1. 790

    Utah, 1954.

     
  2. 2571

    Central Valley California, 1954.

     
  3. 53

    Zion National Park, 1954.

     
  4. 139

    Waterwheel Falls, Yosemite, 1954.

     
  5. 264

    Norway, 1978.

     
  6. 374

    Shell-less snail.

     
  7. 398

    Moonrise in Yellowstone, 1972. 

     
  8. 103

    French Island, 1967. 

     
  9. 1735

    Olympic National Park

     
  10. 5789

    Roosevelt Elk