PRE-WISCONSIN DRIFT IN THE FINGER LAKE 
REGION OF NEW YORK* „ , ' 
FRANK CARNEY. 
CONTENTS. 
Introduction. 
Pre-Wisconsin Drift in General. 
Geographical'factor. 
Topographic Control of the Erosion and Deposition of Drift. 
Deposition of drift. 
Erosion of drift. 
Inherent Characteristics of Old Drift Thus Preserved. 
Topography of the Finger Lake Region. 
Favors both ice-erosion and ice-stream aggradation. 
Location and Description of the Pre-Wisconsin Drift in Question. 
First indication of such drift. 
Western slope of Bluff Point. 
Eastern slope of Bluff Point. 
The North Crosby exposure. 
Mixed exposures. 
Keuka Lake Outlet exposure. 
Erosion and color. 
Age of This Drift. 
Summary. 
INTRODUCTION. 
With old drift on Long Island,^ in New Jersey,^ and in north- 
western Pennsylvania/ it is very likely that a line of old drift 
should connect these areas. If, however, these localities of old 
drift represent ice-work from separate dispersion centers, then the 
re-entrant angle not covered by this drift might include much of 
^ Reprinted from the Journal of Geology, vol. xv, No. 6, September-October, 1907. 
^ J. B. Woodworth, New York State Museum Bulletin ^8 (1901), pp. 618-70; 
M. L. Fuller, American Geologist, vol. xxxii (1903), pp. 308-12; A. C. Veatch, 
Journal of Geology, vol. xi (1903), pp. 762-76. 
^ R. D. Salisbury, Geological Survey of New Jersey, Annual Report for i 8 gs, 
pp. 73, etc.; vol. v (1902), pp. 187-89; 75i-782._ 
F. Leverett, Monograph XLI, U. S. Geological Survey (1902), p. 228; L. H. 
Woolsey, Beaver Folio, No. 134 (Pennsylvania), U. S. Geological Survey (1905), 
p. 7. 
