Hoodoos of Arches National Park
Hoodoos in Arches National Park near Moab, Utah
Hoodoos are erosional remnants of mainly sedimentary rocks that have eroded into weird shapes. They are nothing more than erosional remnants that take on strange shapes. With some imagination, especially at night, hoodoos can look like all kinds of creatures, even people.
Hoodoos in Arches National Park near Moab, Utah
A hoodoo is a slender pinnacle that is capped by a resistant rock layer, either sandstone or limestone, which is underlain by softer shales. It forms as the shales are eroded away, while its vertical integrity is maintained by the caprock.
Hoodoos in Arches National Park near Moab, Utah
Hoodoos are erosional towers left in place when a hard cap rock (generally a boulder or cobble) protects a column of more erodable sediment beneath. Thus, while the material surrounding the hoodoo is washed away by direct rainfall and surface erosion the hoodoo stands as a small tower.
Hoodoos carved in Entrada Sandstone in Arches National Park
Hoodoos carved in Entrada Sandstone. Note the hard caprock that protects each of these hoodoos.
Hoodoo in Arches National Park
These are hoodoos but I am not sure what rock formations they are carved out of but I would bet it is Entrada Sandstone. Hoodoos are pillars of eroded rock, typically sedimentary rocks, that are protected at the top by a more highly resistant boulder.
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