There was much beach erosion in July 1971 and only slight accretion 

 during the next 2 months. Much reduction in beach width and some terrace 

 erosion preceded ice formation. There was a tremendous amount of accretion 

 during one surveying period in June 1972 which left the beach wide through 

 the summer. 



The wide beach prevailed in August 1972, but by the end of September 

 it was nearly gone. A small amount of accretion occurred in November, 

 and accretion continued after melting of shore ice, followed by modest 

 erosion in the late spring and early summer of 1973. 



The only erosion to the bluff at this location was a small amount at 

 the toe of the bluff. This limited erosion was partly due to the resis- 

 tance of the till and partly to the coastal protuberance to the south which 

 aided beach accumulation. 



n. Profile Site 14 . This site is adjacent to some of the largest 

 dunes on the eastern coast of Lake Michigan with many rising in excess of 

 150 feet above lake level. The profile is located at the base of a large 

 blowout which had a broad foredune terrace at the beginning of the study. 

 A thick peat bed and lake clays are present near lake level at the base 

 of the terrace. This location has also been monitored since June 1968 

 (Davis, 1972). 



A well-developed beach and a swash bar were present at initiation of 

 the study. Erosion to the beach was rather severe in September 1970 but 

 the following month accretion returned the beach to its original condition. 

 A similar pattern followed during the next 2 months. Modest accretion fol- 

 lowed the spring ice breakup, and then some erosion occurred. Little 

 change took place during the remainder of the year. 



Modest erosion during July 1971 was followed by 2 months of accretion. 

 Fairly severe beach erosion occurred during the late fall storm period 

 although some accretion was noted in December 1971. More erosion followed 

 after shore-ice breakup and in June 1972. Stability then prevailed through 

 the end of the year. Although there was much activity on the beach, no 

 erosion occurred on the terrace during the first 2 years of study. 



After initial accretion in September 1972, erosion was prevalent through- 

 out the late summer and fall with recession of the terrace also significant, 

 Rills in the backshore were prominent in November 1972, thus indicating 

 that till or lake clays which perch water were close to the beach surface. 

 Much erosion occurred after shore-ice breakup with 21 feet of terrace 

 being removed, exposing an additional thick peat bed about 20 feet above 

 lake level. Beach accretion followed in June and July 1973. 



o. Profile Site 15 . This site is located in an area of fairly steep, 

 high bluffs of glacial drift. The tops of these bluffs, which rise about 

 40 feet above lake level, are covered with mature vegetation and occupied 

 by residential developments. No sand terrace was present during the study 

 period. 



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