cliff-line

Updated: May 24, 2025

Next to the Kaibab division of the Grand Canyon, the greatest declivity occurs in the Uinta region, in the Canyon of Lodore. The profile of the river in these two districts is approximately given on page 57. The average depth of the Grand Canyon is about 4000 feet. Its width at the top varies from 4 1/2 to 12 miles. This is the extreme outer cliff-line.

Frederick Samuel Dellenbaugh - The Romance of the Colorado River : The Story of its Discovery in 1840, with an Account of the Later Explorations, and with Special Reference to the Voyages of Powell through the Line of the Great Canyons

But at the left there is a salient in the cliff-line, and here accordingly a great cataract of foaming water comes down almost as a separate body, in advance of the line of the main fall. I doubt whether, excepting, of course, Niagara, there is a waterfall in North America which outranks this if both volume and beauty are considered.

Theodore Roosevelt - Through the Brazilian Wilderness