sentences:  The municipality is situated along the border with the United States.Geological features include an east-west forested ridge Covey Hill, a foothill to the northern Adirondack Mountains of New York State, from which the skyscrapers of Montreal are visible to the northeast.Streams run from its northern flank to the Chateauguay Valley where tributaries feed the Chateauguay River that drains into the St. Lawrence River.