REPORT OF THE DIRECTOR AND STATE GEOLOGIST 1900 rl27 



on Salina shale or near enough to the ©hale to have impervious 

 bottoms. As no description of these has been published, giving 

 a true account of their origin, a brief description will be included 

 here. The lakes are located on the adjoining corners of the Syra- 

 cuse, Tully and Chittenango sheets. 



Jamesville lake. This lake is situated over a mile west of 

 Jameisville, in a cataract basin 160 feet deep to the water and 

 about 400 feet across. The depth of the lake is given as 60 feet. 

 PI. 31, 32 are two photographs of the lake and basin. The lake 

 was formerly called G-reen lake, but was recently renamed James- 

 ville lake by Prof. E. C. Quereau.^ The altitude of the lake sur- 

 face is about 600 feet. 



Blue lake (pi. 33). This beautiful lake is across the valley from 

 Jamesville, li miles to the northeast. It is almost a duplicate of 

 the Jamesville lake, but somewhat larger in all dimensions. By 

 eye estimate the basin is over 1000 feet across, the nearly vertical 

 walls being nearly 200 feet high. The lake is some 50O to 600 

 feet in diameter, with the depth unknown. The map elevation is 

 about 580 feet. The gorge in which this lake lies opens directly 

 north J mile into the White lake gorge. The lake has under- 

 ground outlet through a barrier ridge of coarse material which 

 rises some 10 or 15 feet above the lake. Thisi lake was also 

 locally called Grreen lake, but it is proposed by the writer to name 

 it Blue lake, which is equally appropriate, and will prevent dupli- 

 cation of names, since the name Green lake is held for another 

 lake of the vicinity (see p. 128). 



White lake. At the junction of the Blue lake gorge with the 

 gorge leading east to High Bridge is a lake locally called White 

 lake. It is larger than those already mentioned, and is said to 

 be shallow with low shores. Its location at the junction of the 

 two gorges suggests that its genesis is the same as of the other 

 lakes. The map elevation is between 540 and 560 feet. 



Evergreen lake (pi. 34). This lake lies | mile south of High 

 Bridge, and close to the west side of the road. It is of irregular 



^ Topography and history of Jamesville lake, N. Y. Geol. soc. Am. BuL 

 9:173. 



