[DManA]

Why aren’t there hundreds of Grand Canyons on every continent?

[editor-surveyor]

>> “Why aren’t there hundreds of Grand Canyons on every continent?” <<

Actually, there are. Thousands. They are not all large, since they are governed by the quantity of water that was trapped in the upstream basin, but they are found on most creeks and rivers that run through sediment that was damp from the flood.