• View of Grand Canyon National Park at sunset from the South Rim

    Grand Canyon

    National Park Arizona

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  • Grand Canyon’s North Rim

    remains open with limited services. More »

Contact Us

By Email


Before you send your message!
We receive a lot of emails requesting information that is available on our website. Please browse the topics listed in the site index before submitting your message, and keep in mind that our site contains far more information than we can email you. Thanks!


Phone Numbers
  • General Visitor Information: (928) 638-7888
  • Backcountry Information Center: (928) 638-7875 between 1 pm and 5 pm Monday through Friday, except on federal holidays
  • River Permits Office: (800) 959-9164 or (928) 638-7843


Fax Numbers

  • Main Fax Number: (928) 638-7797
  • Backcountry Information Center: (928) 638-2125
  • River Permit Office: (928) 638-7844


Write to

Grand Canyon National Park
P.O. Box 129
Grand Canyon, AZ 86023

Note: The park is not able to receive or to hold mail at this address for park visitors. The Grand Canyon Post Office is not permitted to release mail from the National Park Service box to park visitors.

To mail something to yourself, it is possible to send it to:

Visitor Name
General Delivery
Grand Canyon, AZ 86023
(South Rim only)

To pick up General Delivery mail at the Grand Canyon Post Office, you must present 2 valid pieces of identification.

Did You Know?

GRAND CANYON ROCKS

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.