274 



THE HYDROGRAPHY OF CECIL COUNTY 



courses of the river between "Williamsport and its month, at Havre de 

 Grace. The latter figure also shows that the total fall of the river 

 from the State line, near Bald Friar, to tide-level at Havre de Grace 

 is only a little over sixty feet, or an average of about four feet per 

 mile. 



Fig. 18. Profile of Susquehanna River from its source to Williamsport, Pa. 



HZOMTAi. SCALE 



> 



3 



2 







T 



* 



^ 



i 



? 1 



1 



It ,• i 





^w«»»«° : '" "° 



..:; 







**CfLAG£ +.03 P£* uii£ *« *> j 



Fig. 19. Profile of Susquehanna River from Williamsport, Pa., to Havre de Grace. 



There are a number of lakes in the basin of the Susquehanna, but 

 they are so small in comparison with the immense drainage area of 

 the river that they have but little effect upon the regulation of its 

 flow. Possibilities of artificial storage are good, as dams of compar- 

 atively small cost could be built on some of the upper tributaries and 

 large quantities of water stored. A large part of the drainage area 

 has been cleared of timber, but in the mountain regions of Pennsyl- 



