U.S. GEOLOGICAL SURVE-^ 



MONOGRAPH XXV. PL. XIX. 



MAP SroWTNG Tlffi EXTENT OF LAKE /VGASSIZ iVT THE TIMES OF FORMATION OF THE FERGUS FALLS AND LEAF HnXS MORAINES. 



Scale, about 42 miles to an inch. 



;Vrc'a ol' Lake Agassizcoiitciupo'iaiieotiswitli Ihc Fergus Falls Moraine 1 I Area added at tlie lime of the Leaf Hilis Moraine I 1 



Fergus Kails icighlh) and Leaf Hills 'nintlil Moraines I J 



