Esker: Northern Manitoba, Canada
Normally this kind of landform would be
wiped out as the ice sheet shifts and the
meltwater streams change course. This
particular esker must have been laid down
just before the ice sheet stopped moving and
began to melt for the last time. Similarly,
the small lakes to the right in this photo mark
where the last masses of ice sat while
meltwater laid sediment down all around them.
They're called kettles.