#USA26-33 Grand Canyon of the Yellowstone River, 02 June 1979

#USA27-07 Upper Falls, Grand Canyon of the Yellowstone River, 02 June 1979

#USA26-29 Yellowstone National Park, 02 June 1979.

#USA26-25 Boiling cauldron, West Thumb geothermal area Yellowstone National Park

#USA26-22 West Thumb geothermal area, Yellowstone National Park, 02 June 1979

#USA26-15 West Thumb geothermal area, Yellowstone National Park, 02 June 1979

#USA26-20 West Thumb geothermal area, Yellowstone National Park, 02 June 1979

#USA26-19 West Thumb geothermal area, Yellowstone National Park, 02 June 1979

#USA26-17 West Thumb geothermal area, Yellowstone National Park, 02 June 1979

#USA26-13 West Thumb geothermal area, Yellowstone National Park, 02 June 1979

#USA26-11 Continental Divide, Yellowstone National Park, 02 June 1979

#USA26-10 Yellowstone National Park, 02 June 1979

#USA26-06 riding on the roof rack, Yellowstone National Park, 02 June 1979

#USA26-05 Firehole River, Yellowstone, 02 June 1979

#USA26-04 Old Faithful geothermal area, Yellowstone, 02 June 1979

#USA26-02 Old Faithful geothermal area, Yellowstone, 02 June 1979

#USA26-01 Old Faithful geothermal area, Yellowstone, 02 June 1979

USA25-30 Along the Firehole River, Old Faithful geothermal area, Yellowstone Nat

USA25-29 Along the Firehole River, Old Faithful geothermal area Yellowstone 1979

USA25-33 Old Faithful geothermal area, Yellowstone National Park, 02 June 1979

USA25-32 Firehole River, Yellowstone National Park, 02 June 1979

USA25-31 Firehole River, Yellowstone National Park, 02 June 1979

#USA25-28 Along the Firehole River, Old Faithful geothermal area, Yellowstone NP

#USA25-27 Old Faithful geothermal area, Yellowstone NP, Wyoming, 01 June 1979