Advancing glaciers can push granite boulders ("erratics") from Canada down to where the ice stopped.
Other glacial features include
- moraine:
eroded rock piled up by an advancing ice sheet.
- kettle
(pothole): a chunk of ice sitting in a depression eventually melts, leaving behind its load of gravel.
- kame:
meltwater pouring through a hole in the ice left a mound of gravel and sand.
- esker:
a stream flowing through the ice left behind ridges of gravel and silt.
- loess:
windblown eroded rock dust that can accumulate in thick deposits of silt.
