Geomorphology . Beach at Summit 

 Township Park (Mason County) has a 

 shoreline orientation of N.7°W. and 

 is adjacent to bluffs of glacial 

 drift. At times, glacial till was 

 observed cropping out just lakeward 

 of the plunge step. Foreshore 

 comprised of well-sorted and rounded 

 cobbles. Large percentage of the 

 sand in backshore is from a sand 

 terrace where the upper swash of 

 waves has undercut the terrace and 

 vertical slope has failed. 



Bench Mark Location (5 August 1970) 

 (,mh, sec. 23, T.17 N. , R. 18 W.). 

 Immediately fronting large, dead 

 maple tree, just south of Summit 

 Park. Azimuths (from north): 83°04', 

 north of maple tree; 20l''lS' , Little 

 Sable Point; 343°19', end of groin; 

 351°39', large stump west edge. 



June 1970 



11 August 1971 

 Figure 10. Location and geomorphology of profile site 5. 



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