It’s been said so many times that it sounds like a cliché, but taking a hike into the Grand Canyon is literally a Walk Through Time. Nowhere else on the planet is such a great amount of Earth history … [Read more...]
Kaibab Limestone to Supai Formation
The rim of the canyon is formed of a layer about 300 feet thick called the Kaibab Formation. This creamy yellow limestone has fossils in it: sharks, fish, corals, brachiopods, bryozoans, crinoids and … [Read more...]
Redwall Limestone to Tapeats Sandstone
As you finish your long traverse in the red layers of the Supai Group, you'll come to a very steep part of the trail, where switchbacks wind down through the next layer, the Redwall Limestone. It … [Read more...]
The Supergroup
What lies below the Tapeats Sandstone will be different depending on where you are in the Canyon. On the Kaibab Trail, you will step from the Tapeats Sandstone down into more sedimentary layers of … [Read more...]
The Inner Gorge
Now, when you step below the Grand Canyon Supergroup rocks, or below the Tapeats Sandstone, depending on what trail you’re hiking, you will have gone back 1.7 billion years, 1700 million years! As … [Read more...]