ABSTRACTThe ancient shoremarks of the Járlåsa esker have been levelled. The most common shoremarks of the Járlåsa esker are small boulder fields (Sw.“stentorg”), but shore terraces with beach scarps also occur. The latter are not so well developed as on e.g the adjacent Heby esker but have nevertheless been included as data for the stratification of the shorelines, or rather the strata of shoremarks. A stratification attempt has been made. This identifies a number of strata in the altitude interval between c. 60 and 70 m a.s.1. This result is in good agreement with studies from the Heby esker, situated at c. 20 km W of the Járlåsa esker.