OUTLETS OF LAKE MAUMEE. 713 



SIXMILE CREEK CHAlSTlSrEi:,. 



This channel, which was brought to notice by Dryer/ has been discussed 

 in connection with the Fort Wayne moraine, its course l)eing- southward from 

 New Haven to the St. Marj^s River, tlu'ough the Fort Wapie moraine, and 

 thence westward to the Fort Wayne outlet. It is much smaller than the 

 Fort Wayne outlet, being only about one-fourth mile in width. Although 

 its bottom has a level 40 to 60 feet below neighboring parts of the moraine,' 

 its immediate banks are scarcely more than 15 feet in height. The channel 

 is now drained northward by Sixmile Creek from within 2 miles of St. Marys 

 River; but it seems to have been opened, or at least utilized, by waters of 

 Lake Maumee discharging southward. The beach south of the lake turns 

 up this channel on each side just as the north and south beaches turn 

 westward into the Fort Wayne outlet. Fvuihermore, the recurved portion 

 on the east side of Sixmile channel has been opened for gravel, and its 

 bedding shows that it was foi'med by a southward-flowing stream. This 

 line of discharge for Lake Maumee found its continuation down the St. 

 Marys Valley but a short distance, for it left the river and passed directly 

 west to join the Fort Wayne outlet about 6 miles southwest of Fort Wayne. 

 The coui'se is plainly marked by a channel about the same size as that 

 along Sixmile Creek. 



This channel was probably utilized only during the highest stage of 

 Lake Maumee, for its summit is apparently a little higher than the second 

 beach. The deposit of sand found near the north end of the channel niay, 

 as suggested by Dryer, represent, in part at least, the delta of the St. Marys 

 River, formed after the lake level had become lower. 



IMLAX OUTLET. 



The headward part of the Lxilay outlet, as described by Taylor,^ is only 

 about one-third of a mile wide at its narrowest place, averaging somewhat 

 less than half a mile in width, and "does not give evidence of a very rapid 

 or powerfully flowing current, if the sediments remaining on its bottom are 

 taken as an indication, for it is floored mainly by sandy beds of gravel and 

 not by bowlders and cobble." These gravel beds are found chiefly along 

 the borders of the valley and stand 6 to 15 feet above the swamp which 



' Sixteenth Ann. Rept. Geol. Survey Indiana, 1888, p. 112. 

 ■' Bull. Geol. Sof. America, Vol. Vlll, 1897, pp. 37-39. 



