Grand-canyon
noun
1.
a gorge of the Colorado River in N Arizona. over 200 miles (320 km) long; 1 mile (1.6 km) deep.
noun
1.
a gorge of the Colorado River in N Arizona, extending from its junction with the Little Colorado River to Lake Mead; cut by vertical river erosion through the multicoloured strata of a high plateau; partly contained in the Grand Canyon National Park, covering 2610 sq km (1008 sq miles). Length: 451 km (280 miles). Width: 6 km (4 miles) to 29 km (18 miles). Greatest depth: over 1.5 km (1 mile)
A five-thousand-foot-deep gorge carved by the Colorado River in northwestern Arizona.
Note: Grand Canyon National Park is a great tourist attraction.
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