Tag Archive for: sandstone arches

Near Moab, Grand County
Photo by Greg McDonald © 2019

Composed of Jurassic-age Navajo Sandstone, wind-sculpted Corona Arch stands before snow-covered cliffs of the same formation. This arch was formed from the same weathering process and during the same time as the world-famous features in nearby Arches National Park.



Things are humming right along at Arches National Park.

That is, scientists who wondered about possible internal damage in the 88-foot-long Mesa Arch at Canyonlands National Park-one of more than 2,000 sandstone arches in two national parks in that part of Utah–now have an answer. They learned by employing seismometers to hear the arches’ natural humming, then monitored the sounds for telling changes. Their report was recently accepted for publication in the journal Geophysical Research Letters.