62 IF. B. TAYLOR—ORIGIN OF GORGE OF WHIRLPOOL RAPIDS. 
i 
Probable Increase 
of Volume. 
en 
. Decrease of Volume 
Modern Great Falls 
Resumed Rock Cutting after 
passing the Whirlpool Basin. 
S e o : 
Railroad Bridges, ie aA 
ilncrease of 
Volume 
SOALE 
Feet 
(6) 1000 2000 
ut. ss 
Miles 
0k Va, 
eS eee 
; 
ot NIAGARA 
Bee RIVER 
F. B. Taylor, Nov. 1897 
Figure 1.—Map of the Gorge of Niagara from the Falls to Wintergreen Flat. 
