Sandusky Bay and Cedar Point 183 



The effect of some of these same storm.s in producing lasting 

 changes on Cedar Point and elsewhere about the bay will be 

 mentioned in subsequent chapters. Storms of much less vio- 

 lence than these seem awful to those who are on the lake at the 

 time. On May 31st, 1903, the water striking the Ohlemacher 

 dock on Marblehead was dashed so high that people at a distance 

 could see it over the tops of the limekilns and on another occasion 

 Alex R. Clemons estimates that the spray went more than fifty 

 feet above the top of this high dock. In front of the large stone 

 house which stands near the lake in Marblehead village a piece 

 of limestone estimated to weigh two and one-half tons was 

 broken loose from the bed rock and moved along shore twenty- 

 seven feet by a single storm. Looking from this place Mr. 

 Clemons has counted as many as seven wrecks, all in sight at one 

 time. 



EFFECT OF TILTING OF THE LAND. 



Lake Beaches. 



When the glacier had retreated beyond the northern 

 boundary of Ohio a lake extended along the southern border of 

 the ice. The south shore of this lake was at first about twenty 

 miles south of where Sandusky now is. Its western extremity 

 was at Fort Wayne, Indiana, whence the water flowed to Hunt- 

 ington and via the Wabash and Mississippi to the gulf. As the 

 ice melted from the southern part of Michigan, outlets were 

 formed into the Grand River valle}^ through which the water 

 flowed to another glacial lake occupying the southern part of the 

 basin of Lake Michigan and thence toward the Mississippi through 

 the depression now utilized for the Chicago drainage canal. The 

 later outlets were lower than the earlier ones and consequently 

 the lake level fell and each time it fell its southern shore came 

 nearer Sandusky. Each position of the shore is marked by a 

 beach. The highest beach extends from Fort Wayne through 

 Van Wert, Tiffin, Pontiac, the southern part of Norwalk and 

 Berlin Heights, from there on east continuing only a few miles 

 from Lake Erie. The middle beach extends through Bellevue, 

 Monroeville, the main street of Norwalk, Berlin Heights and 

 Elyria. The lowest beach passes through Clyde, south of Milan 

 through Berlin Heights and along EucHd Avenue, Cleveland, 

 through northwestern Pennsylvania and western New York. 



Each beach, when formed, must have been approximately 

 level as it followed the shore of a lake. But they are no longer 

 level. Leverett has found that the lowest one is 168 feet higher 

 at Crittenden, N. Y., than at Cleveland, showing that the land 

 between these places has been tilted to that extent. Old beaches 



