SANDUSKY BaAy AND CEDAR POINT 233 
EERO LEVEL 
Map IX. 
East and west section one mile long, north of the western part of Sandusky, inter- 
secting the submerged valley of Mill Creek. 
Valley extending under marsh from Guston Inlet to Cedar Point, about a mile and 
a quarter. Thirty-three borings within the lines all show a greater depth to clay than 
the nearest ones outside. 
