1. A field of pahoehoe and ʻaʻa lava. In the foreground, a shrub growing in the cinder, and in the background, a spatter cone.

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

    Published on November 29, 2019

  2. A field of pahoehoe and ʻaʻa lava in front of a couple of spatter cones.

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

    Published on November 28, 2019

  3. Ropes of pahoehoe lava alongside the Cave Area trail in Craters of the Moon.

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

    Published on November 28, 2019

  4. A big rope of pahoehoe lava alongside the Cave Area trail of Craters of the Moon.

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

    Published on November 27, 2019

  5. A field of ʻaʻa and pahoehoe lava along the Cave Area trail of Craters of the Moon.

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

    Published on November 27, 2019

  6. Detail of wavy, stringy pahoehoe lava along the Cave Area trail in Craters of the Moon.

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

    Published on November 26, 2019

  7. Detail of pahoehoe lava along the Cave Area trail. The lava looks rough and jagged, but ropey and wavy.

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

    Published on November 26, 2019

  8. Pahoehoe and ʻaʻa lava along the trail in the Cave Area of Craters of the Moon.

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

    Published on November 25, 2019

  9. 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

  10. 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

  11. 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

  12. 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

  13. 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

  14. 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

  15. 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

  16. 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

  17. 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

  18. 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

  19. 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

  20. 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

  21. 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

  22. 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

  23. 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

  24. 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