1. A field of ʻaʻa and pahoehoe lava with some shrubs.

    Lava, Cave Area, Craters of the Moon National Monument & Preserve. October,…

    Published on November 25, 2019

  2. A shrub growing on a field of ʻaʻa lava.

    ʻAʻa Lava, Craters of the Moon National Monument & Preserve. October, 2019.

    Published on November 24, 2019

  3. A jagged piece of ʻaʻa lava along the Cave Area trail.

    ʻAʻa Lava, Cave Area, Craters of the Moon National Monument & Preserve.…

    Published on November 24, 2019

  4. A field of pāhoehoe lava at the Lava Cascades.

    Lava Cascades, Craters of the Moon National Monument & Preserve. October, 2019.

    Published on November 23, 2019

  5. A close-up view of jagged, spiky ʻaʻa  lava. In the background, a spatter cone.

    Spatter Cone, Craters of the Moon National Monument & Preserve. October, 2019.

    Published on November 23, 2019

  6. Cinders and a field of ʻaʻa lava in front of a spatter cone.

    Spatter Cone, Craters of the Moon National Monument & Preserve. October, 2019.

    Published on November 22, 2019

  7. A field of jagged ʻaʻa lava set in front of a spatter cone.

    Spatter Cone, Craters of the Moon National Monument & Preserve. October, 2019.

    Published on November 22, 2019

  8. A shrub growing on the dark soil of Craters of the Moon. In the background, lines of trees on hills, and in the far distance, mountains.

    Craters of the Moon National Monument & Preserve. October, 2019.

    Published on November 21, 2019

  9. Grasses and trees growing on the dark cinder of Inferno Cone.

    Inferno Cone, Craters of the Moon National Monument & Preserve. October, 2019.

    Published on November 21, 2019

  10. A paved footpath leading towards and around a spatter cone.

    Spatter Cone, Craters of the Moon National Monument & Preserve. October, 2019.

    Published on November 20, 2019

  11. A paved footpath leading towards and around a spatter cone.

    Spatter Cone, Craters of the Moon National Monument & Preserve. October, 2019.

    Published on November 20, 2019

  12. The jagged surface of a spatter cone, set against a sky full of wispy clouds.

    Spatter Cone, Craters of the Moon National Monument & Preserve. October, 2019.

    Published on November 19, 2019

  13. The opening of a spatter cone at Craters of the Moon. A fence is on the rim of the cone.

    Spatter Cone, Craters of the Moon National Monument & Preserve. October, 2019.

    Published on November 19, 2019

  14. A spatter cone at Craters of the Moon, set against a sky of wispy clouds.

    Spatter Cone, Craters of the Moon National Monument & Preserve. October, 2019.

    Published on November 18, 2019

  15. A limber pine growing out of hardened lava at Devils Orchard, Craters of the Moon.

    Devils Orchard, Craters of the Moon National Monument & Preserve. October, 2019.

    Published on November 18, 2019

  16. A dead limber pine among the sagebrush near the Devil's Orchard in Craters of the Moon.

    Craters of the Moon National Monument & Preserve, Idaho. October, 2019.

    Published on November 17, 2019

  17. A bull elk standing among snow covered sage brush, its head turned and looking directly towards the camera.

    Bull Elk, Grand Teton National Park. October, 2019.

    Published on November 17, 2019

  18. A bull elk, standing among snow-covered sage brush.

    Bull Elk, Grand Teton National Park. October, 2019.

    Published on November 16, 2019

  19. A curve on the inner park road after an early autumn snowfall. In the background, Teewinot Mountain shrouded in clouds.

    Teton Park Road, Grand Teton National Park. October, 2019.

    Published on November 16, 2019

  20. Teewinot Mountain, covered in snow after an early autumn snowfall.

    Teewinot Mountain, Grand Teton National Park. October, 2019.

    Published on November 15, 2019

  21. The Teton range after an early autumn snowfall. In the foreground, snow-covered sage brush.

    Early autumn snowfall at Grand Teton National Park. October, 2019.

    Published on November 15, 2019

  22. Mount Moran, shrouded in clouds after an early autumn snowfall.

    Mount Moran, Grand Teton National Park. October, 2019.

    Published on November 14, 2019

  23. A storm dumping snow on Antelope Flats in Grand Teton National Park. Blacktail Butte can be seen to the right.

    Storm over Antelope Flats, Grand Teton National Park. October, 2019.

    Published on November 14, 2019

  24. Nez Perce Peak, slowly being swallowed by a snowstorm.

    Nez Perce Peak, Grand Teton National Park. October, 2019.

    Published on November 13, 2019