Approximately 17,000 years ago, a wall of water more than 120 meters or 400 feet in height raced across a section of Utah and southern Idaho. As this flood quickly overflowed the natural boundaries of river channels, it began depositing house sized boulders on cliffs, and depositing large volumes of sediment in the landscape. This flood originated due to one of the largest known natural damn failures in geologic history, which permanently changed the landscape over a wide swath of Idaho, Oregon, and Utah.

If you would like to support this channel, consider becoming a patron at [ Ссылка ].

Another way to support this channel is to make an order via our gemstone and geology related etsy store at [ Ссылка ].

This channel's merch store is also on etsy at [ Ссылка ].

Graphics of eruption dates are courtesy of the Global Volcanism Program, Smithsonian Institute. [ Ссылка ]

Google Earth imagery used in this video: ©Google & Data Providers

Thumbnail Photo Credit: Unsplash, stockvault.net, CC0 1.0 UPDD

0:00 A 400 Foot Wall of Water
1:04 Ice Age Era Utah
1:52 Growth of Lake Bonneville
2:50 Large Magnitude Earthquake
3:18 The Megaflood Occurs
3:52 What Remains of Lake Bonneville

свернуть