The rock formations you see throughout this hike (and essentially throughout the Red Cliffs Desert Reserve), are comprised of the older Kayenta sedimentary ... reddish shales, mud, and siltstone ...

Fossilized footprints of a primitive reptile found on a slab of rock from Australia could rewrite the story of how animals ...

Into the slope above the work area, crews are “installing dozens of shear dowels, steel bars approximately 60 ft. in length,” Drabinski said. “These shear dowels are drilled into the slope and grouted ...

Long before the Great Lakes, a rift nearly tore North America in half—leaving behind Lake Superior’s depth, copper-rich ridges, and stories still told today.