Beautiful Grand Canyon Pictures The Grand Canyon is one of natures most beautiful wonders. Located in northern Arizona, the Grand Canyon offers a glimpse into the region's geological and Native American past. The 1.5-kilometer (0.9 mile) deep gorge ranges in width from 500 m to 30 km 0.3 mile to 18.6 miles. It twists and turns 445 km (276.5 miles) and was formed during 6 million years of geologic activity and erosion by the Colorado River on the upraised earth’s crust. Its horizontal strata retrace the geological history of the past 2 billion years.