Warm Days and Cool Nights through Friday
Expect breezy southwest winds this weekend as a cold front moves towards the region. More »
Bat Tests Positive for Rabies in Grand Canyon National Park
Public Health Alert, October 2014: A bat recently removed from an area along the Colorado River within Grand Canyon National Park has tested positive for rabies. Any persons having physical contact with bats in the park, please follow this link. More »
Self-Guided Field Trips
Self-Guided Field Trip Information for Teachers
If you are unable to participate in a ranger-led field trip to Grand Canyon, or if our educational programs do not meet your curricular needs, consider organizing your own class field trip to the park. The following resources will help in planning your visit. If you need further assistance, please contact us.
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 estimate the age of Earth at 4.5 billion years.