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Beringia: land between Asia and North America
Beringia is a broad region linking northeastern Asia and northwestern North America. At low sea levels, the Bering–Chukchi shelf included a land connection across the area of today’s Bering Strait.
A land bridge, not an ice bridge
Lower seas exposed the continental shelf. Much of Beringia was unglaciated, even while major ice sheets occupied other parts of North America. The phrase “Ice Age land bridge” describes its timing, not a bridge constructed from glacier ice.
References: USGS — Geology of Bering Land Bridge National Preserve
Geography is not a complete migration history
A land connection establishes a geographic possibility. It does not by itself establish when people crossed it, how many dispersals occurred, or which routes people followed farther south. Such questions require archaeological and other independent evidence.
This map does not contain a human migration dataset. Avoid interpreting its exposed-land colour as a mapped trail or as proof that an entire route was passable.
References: USGS — Geology of Bering Land Bridge National Preserve
Explore both sides of the date line
Open the regional view around the Bering Strait and compare low-sea-level snapshots with the present reference. The world wraps at the date line, so the same landscape remains continuous as you pan. Local flooding dates require more than modern bathymetry and a global sea-level threshold.