Long called the Bering Land Bridge, this “bridge” was in fact over 1,000 miles wide at the lowest sea levels. It extended from the general area of the Pribilof Islands to more than 500 miles north of the current Bering Strait. Look at a map of the floors of the Pacific and Arctic Oceans, and the extent of these continental shelves becomes apparent. With lower sea levels, this “bridge” was a huge plain that is now called Beringia.