The ice-free migration corridor emerged east of the Rocky Mountains in present-day Canada.
Notes on verification
Multiple independent, high-quality sources including a peer-reviewed PNAS study and academic institution corroborate the location and formation of the corridor east of the Rockies. [tier=gold indep_score=0.983 clusters=3 claim_tier=notable]
Sources
- New Study Refutes Theory of How Humans Populated North America | HISTORY (seed:history_and_archaeology)
- https://www.pnas.org/doi/full/10.1073/pnas.2118558119 (corroboration)
- https://www.imperial.ac.uk/news/234899/ice-free-corridor-opened-late-population-route/ (corroboration)
- https://www.sciencedirect.com/topics/earth-and-planetary-sciences/ice-free-corridor (corroboration)