The slot canyon’s formation began 5 to 6 million years ago and continues to change with every flash flood and rainfall. Here’s a brief timeline of the history of the canyons.
- 190 million years ago: The sandstone walls of Antelope Canyon began to take shape during the Jurassic period.
- 5 to 6 million years ago: Flash floods and heavy rainfall caused “slots” to form over time, creating the canyons we see today.
- 8 to 9 centuries ago: The Navajo people settled in lands around the canyons.
- 40 to 50 years ago: Antelope Canyon became a protected site under the Navajo Nation, is a part of the Navajo Tribal Park, and can only be visited with a Navajo guide present.