A canyon is a deep ravine between cliffs formed by a river as it travels to reach a baseline elevation.

10 Largest Canyons on Earth
10 Largest Canyons on Earth, By Yohani Kamarudin, Scribol.com, Descriptions and photos of the canyons.
15 Most Incredible Slot Canyons on Earth
15 Most Incredible Slot Canyons on Earth, Written by: Michele Collet, Scribol staff, More stunning photographs!!
Antelope Canyon
Antelope Canyon, Written by: Karl Fabricius, Scribol staff, Twenty stunning photographs! Antelope Canyon is located on Navajo land in the American Southwest. Enjoy!!
Deep-Sea Canyons
Deep-Sea Canyons NOAA's Ocean Explorer "Submarine canyons are steep-sided valleys cut into the sea floor of the continental slope, sometimes extending well onto the continental shelf. These cany
Grand Canyon Ecosystems
Grand Canyon Ecosystems National Park Service Colorful fact-filled presentation in PDF format.
How Was the Grand Canyon Formed?
How Was the Grand Canyon Formed? Smithsonian Channel YouTube.com Video length: 02:20.
The Fragile Beauty of Glen Canyon
The Fragile Beauty of Glen Canyon, Written by: Simone Preuss, Scribol staff, Eighteen stunning photos with descriptions!!
The Hidden Wonders of Dismals Canyon
The Hidden Wonders of Dismals Canyon, Written by: lizzardbreath, Scribol staff, Photos with descriptions.
The Wonders of Bryce Canyon
The Wonders of Bryce Canyon, Written by: Simone Preuss, Scribol staff, Wonderful photographs!
Utah Slot Canyons
Utah Slot Canyons Zion National Park Information and photos explaining how slot canyons are formed.