BL'LL. U. S. B- F.. 1912 
Plats CXV 
KEUKA LAKE 
Topography from maps of the United Slates Geological Survey, 1906 
Hydrography from survey by Cornell University, I884-I888 
1 Topography, 20 feet 
Contour irtlerval \ 
i Hydrography, 30 feel 
