Sale and Rabat are twin towns on the Atlantic coast of Morocco, separated by the Bou-Regreg river and situated on the site including the Merinid necropolis of Chella. Ancient Sala, ruins of which still exist in Chella, was an important Roman town known as a center for buying gold dust. A Jewish community has been traced back to the second century, as in other Arab countries nothing remains. The majority of the Jews of Rabat have emigrated to France, the United States, and Canada, those of Sale going almost exclusively to Israel.