Beit She'an, also Beth-shean, formerly Beisan, is a town in the Northern District of Israel. The town lies at the Beit She'an Valley about 120 m below sea level. Beit She'an is believed to be one of the oldest cities in the region. It has played an important role in history due to its geographical location at the junction of the Jordan River Valley and the Jezreel Valley. Beth She'an's ancient tell contains remains beginning in the Chalcolithic period.