Grand Canyon National Park
Plant Life in the Grand Canyon
The geology of the Grand Canyon area includes one of the most complete and studied sequences of rock on Earth. The nearly 40 major sedimentary layers exposed in the Grand Canyon and in the Grand Canyon National Park area range in age from about 200 million to nearly 2 billion years old. Most were deposited in warm, shallow seas and near ancient, long-gone sea shores in western North America.
- The Grand Canyon is 1 mile deep.
- There are layers of rock dating back millions of year in the walls of the canyon
- The canyon walls reveal 40% of Earths history