Geology of Zion National Park is amazing. Many visitors
traveling through the park wonder how such massive stone
structures came to be. The answer dates back 250 million
years ago when volcanoes were erupting and spewing ash
all over. Dinosaurs left tracks in the ash leaving behind
fossils which are still around today.
sandstone which makes up most of the rock in Zion National
Park was formed by the compacting of sand about 150 million
years ago. This occurred when cementing properties of
compounds such as calcium carbonate compacted the sand
which covered the huge desert of the west. Dunes were
at that timed formed into the present day Navajo Sandstone.
next stage of creation occurred starting close to 4 million
years ago when streams running of the Colorado Plateau
caused the Virgin River to flood. As the river flowed
through the current Zions, it eroded the rock away taking
boulders, sand, and pebbles with it. Over time it formed,
or rather carved the canyon we see today.
enough, Zion National Park is actually very young from
a geological standpoint. This is because Zion didn't develop
its current characteristics until just the past few million
years. As Zion keeps changing, as it does every year,
some day far in the future it will become nothing but
a flat plain.