1. A steam plume rising off of Castle Geyser during an eruption.

    Castle Geyser, Yellowstone National Park. May, 2019.

    Published on August 8, 2019

  2. A steam column rising off of Castle Geyser during an eruption.

    Castle Geyser, Yellowstone National Park. May, 2019.

    Published on August 8, 2019

  3. A huge steam column rising off of an eruption of Old Faithful in the distance.

    Old Faithful, Yellowstone National Park. May, 2019.

    Published on August 7, 2019

  4. A tree tilted at about a 30° angle on the banks of the Snake River, and shrouded in fog.

    The Snake River, just outside Yellowstone National Park. May, 2019.

    Published on August 7, 2019

  5. The inscription at the top of the Roosevelt Arch in Yellowstone National Park, which reads "for the benefit and enjoyment of the people".

    Roosevelt Arch, Yellowstone National Park. May, 2019.

    Published on August 3, 2019

  6. A grizzly sow digging for grubs in the rain near some fallen trees.

    A grizzly in the rain, Yellowstone National Park. May, 2019.

    Published on August 3, 2019

  7. A wolf stalking a herd of bison and their red dogs in the Lamar Valley.

    A wolf stalking a herd of bison in the Lamar Valley, Yellowstone National Park.…

    Published on August 2, 2019

  8. A huge calcified boulder in front of Soda Butte, in the Lamar Valley.

    Soda Butte, Lamar Valley, Yellowstone National Park. May, 2019.

    Published on August 2, 2019

  9. A huge calcified boulder in front of Soda Butte in the Lamar Valley.

    Soda Butte, Lamar Valley, Yellowstone National Park. May, 2019.

    Published on August 1, 2019

  10. A small tree growing at the top of a massive hoodoo in Yellowstone.

    The Hoodoos, Yellowstone National Park. May, 2019.

    Published on August 1, 2019

  11. Trees and bushes growing among the rocks of the Hoodoos in Yellowstone.

    The Hoodoos, Yellowstone National Park. May, 2019.

    Published on July 31, 2019

  12. A winding road in the Hoodoos, Yellowstone National Park.

    The Hoodoos, Yellowstone National Park. May, 2019.

    Published on July 31, 2019

  13. The Roosevelt Arch at Yellowstone National Park on a sunny afternoon. The inscription at the top reads "for the benefit and enjoyment of the people".

    Roosevelt Arch, Yellowstone National Park. May, 2019.

    Published on July 30, 2019

  14. A large herd of bison walking along a copse of trees on the Lamar Valley.

    Bison herd at the Lamar Valley, Yellowstone National Park. May, 2019.

    Published on July 30, 2019

  15. Three dead, calcified trees sticking out of the Mammoth Hot Spring terrace.

    Mammoth Hot Springs, Yellowstone National Park. May, 2019.

    Published on July 29, 2019

  16. A dead calcified tree sticking out of the Mammoth Hot Springs terrace.

    Mammoth Hot Springs, Yellowstone National Park. May, 2019.

    Published on July 29, 2019

  17. Detail of the texture of the terraces at the Mammoth Hot Springs.

    Mammoth Hot Springs, Yellowstone National Park. May, 2019.

    Published on July 28, 2019

  18. A dead, calcified tree sticking out of the water of the Mammoth Hot Springs.

    Mammoth Hot Springs, Yellowstone National Park. May, 2019.

    Published on July 28, 2019

  19. The calcified terraces of the Mammoth hot springs in Yellowstone.

    Mammoth Hot Springs, Yellowstone National Park. May, 2019.

    Published on July 27, 2019

  20. A lone bison, walking in the Lamar Valley. A large group of bison can be seen in the distance.

    Bison, Lamar Valley, Yellowstone National Park. May, 2019.

    Published on July 27, 2019

  21. A bison, looking to his side while walking away from the camera.

    Bison, Lamar Valley, Yellowstone National Park. May, 2019.

    Published on July 26, 2019

  22. Mountains in the Absaroka Range, shrouded in fog behind a forested area in Yellowstone National Park.

    Absaroka Range, Yellowstone National Park. May, 2019.

    Published on July 26, 2019

  23. Barronette Peak, shrouded in fog.

    Barronette Peak, Yellowstone National Park. May, 2019.

    Published on July 25, 2019

  24. Barronette Peak in Yellowstone National Park, shrouded in clouds.

    Barronette Peak, Yellowstone National Park. May, 2019.

    Published on July 25, 2019