The Grand Canyon is not even close to the size of Valles Marinaris. Grand Canyon length 446 km Valles Marinaris length 4000 km Grand Canyon maximum width 29 km Valles Marinaris maximum width 200 km Grand Canyon maximum depth 1.83 km Valles Marinaris maximum depth 7 km
Length 277 river miles Average depth 1 mile Average width rim to rim 18 miles (Marble Canyon 600 yards minimum)
The second largest canyon in the world is the Tsangpo Gorge in Tibet, which is also known as the Yarlung Tsangpo Grand Canyon. It is approximately 17,567 feet (5,382 meters) deep and stretches for about 150 miles (240 kilometers).
Valles Marineris of Mars, has a depth of up to 7 km and a length of 4,000 km. This is equivalent to the length of Europe.The Grand Canyon by comparison, has a depth of 1.6 km and a length of 433 km.
It is the only place on earth that has been carved out by water erosion to such a great depth and area.
At its deepest point it is over a mile.
The floor of the Canyon reaches a depth of about 6,000 feet.
Colca canyon in Peru is 10500 feet in depth
The Colca Canyon is more than twice as deep as the Grand Canyon. This canyon is located in the Andes Mountains of southern Peru. Its depth is over 13,000 feet.
The Grand Canyon is located in northwestern Arizona.
Its greatest depth is closer to 1800 meters.
the length is 466 kilometers long and the width is 29 kilometers wide and its depth is 1,800,000 kilometers. if you do length times width times height, youd get 2.43252x10^10 km^3