3 ms·

If this is true, when do you think humans first arrived in North America? From my reading of the article, the dating of these footprints (~20k years ago) precl

If this is true, when do you think humans first arrived in North America? From my reading of the article, the dating of these footprints (~20k years ago) precludes the idea that humans arrived at that time. They must have arrived much earlier, because the northern part of the content was impassable due to glaciers. ...Unless they travelled down the Pacific coast of North America and then moved east.

Ccecil 1y ago
Columbia river would be my guess. Explains the Cooper's ferry evidence in Idaho [1]. I hear there is oral tradition from the coastal and Oregon tribes about the glacial "Missoula floods" which took place repeatedly between 10k-20k years ago. [1] https://www.seattletimes.com/seattle-news/artifacts-in-idaho-may-be-earliest-evidence-of-humans-in-north-america-study-says/ https://www.seattletimes.com/seattle-news/artifacts-in-idaho...
- gametorch 1y ago
  > I hear there is oral tradition from the coastal and Oregon tribes about the glacial "Missoula floods" which took place repeatedly between 10k-20k years ago. Very cool. You can still see the ripples from the proglacial lake in Missoula today. [1] 1. https://en.wikipedia.org/wiki/Glacial_Lake_Missoula#/media/File:Orillas_f%C3%B3siles_del_lago_Missoula.jpg https://en.wikipedia.org/wiki/Glacial_Lake_Missoula#/media/F...
  - Ccecil 1y ago
    I live in Coeur d'alene, ID...which sits in the Purcell trench. The floods started just north of here at Clark Fork, ID. There is massive evidence of them everywhere you look. One spot, Chilco mountain, if you look towards the trench it is all flat and if you look the other way it is all mountain/river valleys. This wall separated the floods from the non flooded area. Lots of exposed rimrock here too. Also the reason we have such a good aquifer here (Rathdrum aquifer) which supplys Spokane/Coeur d'alene. edit: https://iafi.org/ice-age-floods-videos/ https://iafi.org/ice-age-floods-videos/
    - hungmung 1y ago
      These floods are likely responsible for bringing the 6th largest iron-nickel meteorite ever discovered (on Earth) from the Canada/Montana area to Western Oregon. https://en.wikipedia.org/wiki/Willamette_Meteorite https://en.wikipedia.org/wiki/Willamette_Meteorite
      - gametorch 1y ago
        Wow, that is a beautiful specimen. It's just massive.
    - jjulius 1y ago
      >edit: https://iafi.org/ice-age-floods-videos/ https://iafi.org/ice-age-floods-videos/ I have nothing to add, but want to acknowledge that Nick Zentner is a goddamned national treasure.
ChrisMarshallNY 1y ago
I don't have the references, but I know that there have been some discoveries in Latin America and Western South America, that have been very old. Probably not "solid" enough for many scientists, though.

Ccecil 1y ago

Columbia river would be my guess. Explains the Cooper's ferry evidence in Idaho [1]. I hear there is oral tradition from the coastal and Oregon tribes about the glacial "Missoula floods" which took place repeatedly between 10k-20k years ago. [1] https://www.seattletimes.com/seattle-news/artifacts-in-idaho-may-be-earliest-evidence-of-humans-in-north-america-study-says/ https://www.seattletimes.com/seattle-news/artifacts-in-idaho...

gametorch 1y ago
> I hear there is oral tradition from the coastal and Oregon tribes about the glacial "Missoula floods" which took place repeatedly between 10k-20k years ago. Very cool. You can still see the ripples from the proglacial lake in Missoula today. [1] 1. https://en.wikipedia.org/wiki/Glacial_Lake_Missoula#/media/File:Orillas_f%C3%B3siles_del_lago_Missoula.jpg https://en.wikipedia.org/wiki/Glacial_Lake_Missoula#/media/F...
- Ccecil 1y ago
  I live in Coeur d'alene, ID...which sits in the Purcell trench. The floods started just north of here at Clark Fork, ID. There is massive evidence of them everywhere you look. One spot, Chilco mountain, if you look towards the trench it is all flat and if you look the other way it is all mountain/river valleys. This wall separated the floods from the non flooded area. Lots of exposed rimrock here too. Also the reason we have such a good aquifer here (Rathdrum aquifer) which supplys Spokane/Coeur d'alene. edit: https://iafi.org/ice-age-floods-videos/ https://iafi.org/ice-age-floods-videos/
  - hungmung 1y ago
    These floods are likely responsible for bringing the 6th largest iron-nickel meteorite ever discovered (on Earth) from the Canada/Montana area to Western Oregon. https://en.wikipedia.org/wiki/Willamette_Meteorite https://en.wikipedia.org/wiki/Willamette_Meteorite
    - gametorch 1y ago
      Wow, that is a beautiful specimen. It's just massive.
  - jjulius 1y ago
    >edit: https://iafi.org/ice-age-floods-videos/ https://iafi.org/ice-age-floods-videos/ I have nothing to add, but want to acknowledge that Nick Zentner is a goddamned national treasure.

ChrisMarshallNY 1y ago

I don't have the references, but I know that there have been some discoveries in Latin America and Western South America, that have been very old. Probably not "solid" enough for many scientists, though.