1. Aerial of Excelsior Geyser Crater & Grand Prismatic Spring Jim Peaco, July 2001 Parque Nacional Yellowstone

2. Aerial of Black Sand Basin, Upper Geyser Basin Al Mebane, 1973

3. Thermally cleared grasses in the Upper Geyser Basin J Schmidt, 1997

4. Shoshone Lake Geyser Basin William W. Dunmire, 1969

5. Firehole River as seen from bridge between Castle and Sawzmill Geysers, Upper Geyser Basin Jim Peaco, September 1999

6. Sawrnill Geyser Upper Geyser Basin Jim Peaco, September 2002

7. Old Faithful Geyser Upper Geyser Basin Jim Peaco, September 2002

8. West Thumb Geyser Basin Jim Peaco, September 1987

9. Grand Canyon of Yellowstone as seen from Uncle Tom´s trail Jim Peaco, July 1993

10. Lower Falls Jim Peaco, May 1995

11. Yellowstone Lake Photographer unknown, 1963

12. Bison cow with calf Jim Peaco, June 1997

13. Bison hazing at Undine Falls Jim Peaco, February 2003

14. Grizzly bear on Swan Lake Flats Jim Peaco, June 2005

15. Wolf in the Rose Creek pen Jim Peaco, February 1995

16. Sunflowers in sage Photographer unknown, no date

17. Cheatgrass brome field Photographer unknown, 1964

18. Cottonwoods with fall color in Lamar Valley Jim Peaco, September 2001

19. Thundershowers over Yellowstone Lake, Mt. Sheridan in back ground Jim Peaco, June 2005

20. Summer rain storm over The Thunderer E. Bovy, 1976

21. Sunset Ed Austin/ Herb Jones, 1987

22. Todas las fotografías utilizadas en la elaboración de esta presentación pertenecen al Yellowstone Digital Slide File