The land bridge was used by people to come from Asia to the Americas. It was located in the area which today is the waterway between Alaska and Russia. This bridge was created when ocean waters got tied up in the glaciers. This allowed the land to rise up from the ocean, creating the land bridge. It is believed that this bridge was created about 70,000 years ago. There has been some debate about when it ended. Scientists have used a variety of methods to determine that this bridge did actually exist. There has been much speculation as to why people moved from what is now Russia to what is now Alaska, but nobody actually knows with certainty what the actual reasons were . This land bridge connected present day Russia with present day Alaska many years ago.