Spot on.
"The Blyde River Canyon is 16 miles (26 kilometers) in length and is, on average, around 2500 feet (800m) deep. It consists mostly of red sandstone. The highest point of the canyon is over 6300 feet above sea level (over 1900m) whilst its lowest point is well under 2000 feet (under 600m) above sea level. By some measures it is the third largest canyon in the world, after the Grand Canyon in the United States and the Fish River Canyon in Namibia."