The Hoodoos ClipArt gallery includes 2 examples of tall, thin rock formations topped by a hard rock that resists the erosion of the soft rock below it. Hoodoos also go by the names of tent rock, fairy chimney, and earth pyramid.

Earth pillars protected by a cap of rock and due to rain erosion, Colorado.

Earth Pillars

Earth pillars protected by a cap of rock and due to rain erosion, Colorado.

The curious effect of erosion. This was created by the wind.

Erosion

The curious effect of erosion. This was created by the wind.