Funny PicsIFTTTredditGrand Canyon's Spill-Over Theory claims it was carved by the flow of a high altitude emptying lake through the Colorado Plateau onto the south-west, 4.5 million years ago. Here's a short model showing the process.
Grand Canyon's Spill-Over Theory claims it was carved by the flow of a high altitude emptying lake through the Colorado Plateau onto the south-west, 4.5 million years ago. Here's a short model showing the process.