"A Novel of the Colorado River: A History of its Discovery in 1840, with a Description of Subsequent Explorations, and Special Mention of Powell's Voyages Through the Canyons of the Great River" is a fascinating book by Frederick Samuel Dellenbaugh. The author tells in detail about the oriented attitude of researchers to the Colorado River, starting with its discovery in 1840. The book not only describes the early stages of river exploration, but also tells the story of later discoveries and expeditions, focusing on John Wesley Powell's famous journeys through the great canyons. Thanks to the documentary background and exciting writing style, the book draws the attention of readers to the exciting adventures of explorers in the dangerous and picturesque territory of the river.