F. Ward — " Dam "at Cheshire, Connecticut. 155 



Akt. X. — The "Dam" at Cheshire, Connecticut; by Free- 

 man Ward. 



In the readjustment of the pre-Glacial Farmington Elver 

 dams of glacial drift are considered to play an important part.* 

 One of these dams — at Cheshire — is thought to have ponded 

 the waters to the north till an outlet was formed to the Quin- 

 nipiac River by the cutting of the gorge near South Meriden. 



The writer believes that there is no dam of glacial drift at 



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Fig. 1. Dotted lines are contours — 100 foot interval. Dashed lines are 

 streams. Full lines are roads. Black squares indicate that bed-rock is 

 either at, or within five feet of, the surface. Figures in open squares show 

 depth to bed-rock. Scale — length (E. & W.) of area shown is six miles. 



Cheshire and that the change in the river's course was brought 

 about in another manner. 



A detailed study of the vicinity of Cheshire shows that 

 there is no great accumulation of drift at that 23oint. There is 

 no more till or no more evidence of damming at Cheshire than 

 at any other place in this region. In fact at the actual site of 

 the supposed dam (at the heads of Mill River and Honey Pot 

 Brook in the village of Cheshire) the bed rock is either directly 

 exposed at the surface or is but a fesv feet below, as shown in 

 fig.l. 



* Rice-Gregory, Manual of the Geol. of Conn., p. 252; Conn. Geol. and 

 Hist. Surv., Bull. 6, 1906. 



