HYDROLOGY OF NEW YORK 



51 



mountains are over 5000 feet in hight. The temperature of this 

 region is low, for the same reason as given in the description of 

 the Hudson valley. 



St Lawrence valley extends along the St Lawrence river from 

 Lake Ontario to the north line of the State. It is a level region, 

 gradually inclining upward to the northern plateau. In New 

 York State it is from 40 to 50 miles in width, while in Canada it 

 extends for a long distance to north and west of the St Lawrence 

 river. 



The region of the Great Lakes begins as a narrow strip in Chau- 

 tauqua county, gradually widening and extending along the shore 

 of Lake Ontario, from 20 to 40 miles in width, to Oneida lake. 

 North of Oneida lake this region shrinks to a narrow belt, at 

 Oswego, but widens again above this point towards the plains 

 of the St Lawrence valley. 



The region of the Central Lakes includes the valleys of Keuka, 

 Seneca, Cayuga, Owasco and Oneida lakes. On account of its 

 central location, it possesses climatic peculiarities differing con- 

 siderably from the balance of the State. 1 



Table No. 1. Showing number of stations of weather bureau and 

 approximate elevation above tidewater, in 1893 and 1902. 





1893 



1902 





Number of 



Approximate 



Number of 



Approximate 





stations 



elevation 



stations 



elevation 



(1) 



(2) 



(3) 



(4) 



(5) 



Western plateau 



14 



1,211 



17 



1,135 





14 



1,192 



19 



1,068 





7 



1,328 



12 



1,318 





4 



82 



5 



175 





9 



353 



8 



382 





2 



491 



3 



556 





2 



233 



6 



286 





7 



389 



4 



351 



Great Lakes region. 



12 



496 



12 



446 



5 



742 



6 



676 





76 





92 













x This description of the climatic divisions of the State is abstracted from 

 the 2d An. Rept. of the Commissioners of the State Meteorological Bureau 

 and Weather Service, 1890. 



