Earth Science Week
Celebrate Earth Science Week at Grand Canyon National Park Earth Science Week promotes understanding and appreciation of the value of earth science research and its applications and relevance to our daily lives. Special Ranger Programs
Fossil Walk |
Did You Know?
The more recent Kaibab limestone caprock, on the rims of the Grand Canyon, formed 270 million years ago. In contrast, the oldest rocks within the Inner Gorge at the bottom of Grand Canyon date to 1.84 billion years ago. Geologists currently set the age of Earth at 4.5 billion years.