
Pyrocumulus clouds forming over the Lost Solar Fire in Colorado, on 27 September 2016. This fire was burning about 125 miles (200 km) west of Denver, in the White River National Forest.
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Pyrocumulus clouds forming over the Lost Solar Fire in Colorado, on 27 September 2016. This fire was burning about 125 miles (200 km) west of Denver, in the White River National Forest.
Please click photo to enlarge.

Pyrocumulus clouds forming over the Lost Solar Fire in Colorado, on 27 September 2016. This fire was burning about 125 miles (200 km) west of Denver, in the White River National Forest.
Please click photo to enlarge.
Pockmarked sandstone, at Colorado National Monument.

Pockmarked sandstone, at Colorado National Monument.
Plateau lizards (Sceloporus undulatus), at Colorado National Monument.
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Plateau lizards (Sceloporus undulatus), at Colorado National Monument.
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Strata revealed, on a roadway cutting at Colorado National Monument, near Grand Junction, Colorado.
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Strata revealed, on a roadway cutting at Colorado National Monument, near Grand Junction, Colorado.
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Cliff face of stained Wingate Sandstone, at Colorado National Monument.
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Cliff face of stained Wingate Sandstone, at Colorado National Monument.
Please click photos for full views.