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Episode #046: Potholes and Mid-continent Megafloods

While reviewing the events around the catastrophic drainings of Glacial Lake Agassiz, the ongoing question arises: What was the impulse of energy that initiated the domino procession of megafloods?  We continue to marvel at the oversized mid-continent spillways in the Dakotas, Minnesota, and Wisconsin – investigating multiple sites with the “advanced viewer” on the USGS National Map website, with particular focus on the underfit rivers, the massive potholes along the St. Croix (that we explored with Graham Hancock in 2014), and the discharges thru Lakes Nipigon and Superior. RC then broadens the connotations of “lake” to include more temporary impoundments of meltwater, which leads to a critical assessment of the current model of Lake Missoula and its Ice Dam. And in preparation for next episode’s special guest, Jerome Lesemann, we get an introduction to Canada’s extensive drumlin fields…

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Small class lectures ‘Cosmography 101’ from ’06-’09 on Brad’s original channel: https://youtube.com/geocosmicrex

Full listing of scientific papers about the Younger Dryas Impact Hypothesis: https://cosmictusk.com

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Theme “Deos” and bumper music by Fifty Dollar Dynasty: http://www.FiftyDollarDynasty.net/

Video recording, editing and publishing by Bradley Young with YSI Productions LLC (copyrights), with audio mastered by Kyle Allen.

LINKS: 

https://viewer.nationalmap.gov/advanced-viewer/  (give it a minute to load all the data)

St Croix Dalles: https://files.dnr.state.mn.us/destinations/state_parks/interstate/interstate_geology.pdf

Impact at Nipigon? https://www.youtube.com/watch?v=Dn8NBPA2w5I

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#Megafloods #Agassiz #MinnehahaFalls #StCroixPotholes #YoungerDryas #Cartophile #Drumlins