This gravel is overlain by loess, which is capped by a megaflood diamict deposited during the last glaciation around 18,000 years ago. The erosive power of the Missoula Floods incised the Channeled ...

Jumbled deposits of rock found on the top of hills in south-east Sicily were left by the megaflood that refilled the Mediterranean sea 5 million years – the largest known flooding event in Earth ...