Isthmus of Suez (image) University of Kansas Share Print E-Mail Caption Sea level surrounding the Isthmus of Suez at the Last Glacial Maximum (20,000 years ago) versus today. Note that the Gulf of Suez was dry land 20,000 years ago, making the portage 3 1/2 times as long as today's crossing. Credit Dobson et al Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.