PECULIAR ESKERS AND ESKER LAKES 120. 



is 200 to 300 feet wide and fifteen to twenty feet high with a 

 rather flat crest rising in occasional knolls to twenty-five and 

 thirty feet. The northern portion of the series consists of a 

 group of irregular islands and mounds of considerable mass which 

 is perhaps the representative of an esker-delta. No excavations 

 or cuts have been made and the surface shows no material but 

 sand with an occasional small boulder. The arrangement of the 

 ridges and mounds is such as to enclose between them and the 

 bluff the basin of Gordy's Lake of about fifty acres extent and 

 thirty-five feet in depth. High and Gordy's lakes owe their 

 existence and outline to the presence of eskers and they seem 

 worthy to constitute a distinct species of glacial lakes to be 

 known as esker lakes. 



Charles R. Dryer. 

 Indiana State Normal School, 

 Terre Haute. 



