Starting just west of the Yavapai Geology museum on the canyon rim, visitors can walk backward in time from today toward the oldest rock in Grand Canyon, Elves Chasm gneiss (1,840 million years old).

On January 12, Crow will give a talk at the Museum of Northern Arizona in conjunction with The Grand Canyon Dragon Map exhibit. The talk will be centered on the history of geologic mapping in and ...

It's too dangerous. Grand Canyon National Park is one of the world's ultimate bucket list destinations, a geologic spectacle that must be seen to be fully appreciated. As vast as it is ...

Grand Canyon Lodge (1937) balances on the very edge of the chasm, and its back patio offers perhaps the best place in the entire park to sit, stare, and contemplate the geological wonder that ...

The Grand Canyon, a Cathedral to Time ... uneasy duality — that changed nearly everything for the canyon — feels almost small compared with all the geologic upheavals that took place before ...