8 May 1973 - View to 

 north; note lack of 

 beach, steep slope. 



17 July 1974 - View north showing 

 seawall. Note gray clay till 

 outcrop in center of photo. 



Profile Line 10 . The box-type seawalls with permeable sides, located both 

 north and south of this profile line, are evidence of a history of erosion. 

 Severe erosion of 10 meters during the fall of 1970 and 1971 uncovered a bed 

 of clay till below the sand bluff. This tended to stabilize the bluff through 

 1972 and 1973. However, the near-vertical face of the till layer began to 

 erode during 1974. The absence of any significant beach undoubtedly contrib- 

 uted to the erosion. 



75 



