One of the most popular things visitors like to do in Arches National Park in Utah is to go rock climbing. However, there is one major rule you need to follow.

The Coconino Sandstone layer was deposited not by ... Digging into the rock reveals that its color is actually bluish-gray. The limestone contains the fossilized remains of fish, mollusks ...

Words by Holly Bodeker-Smith· 14 Apr 2025 You don’t have to dig deep to spot sandstone, one of civilisation’s oldest building materials. The sturdy, fine-grained rock is abundant in built and natural ...