The author has investigated some glaciomorphological elements in a valley in western Jämtland, Sweden (see map). These elements consist of terraces and plains, which are now explained as accumulations in lateral meltwater between the mountain slope and an ice-tongue in the center of the valley. Earlier concepts of open ice-dammed lakes are not applicable to this case. A description of the materials in these terraces and plains are given, as well as their formation and construction. Finally, a theory is given on the ice recession in the investigated area.