57 



that in which they were made. The gorge characters and 

 sections have been described above and condensed in a 

 tabulated statement. It is not necessary therefore to 

 repeat here the measurements and statements given there. 

 Attention is directed particularly to those points in the 

 gorge which have a critical bearing upon its history and 

 which stand in definite correlation with the lake history. 

 The first two and a quarter miles (3-6 km.), from 



The Upper Great gorge, looking south from the east end of the cantilever railway bridge. 



The Park bridge and the Falls are seen in the distance, two miles away. Note the 



relatively placid water of the great pool and the ripple in the foreground 



where the water is drawing with increasing velocity into the head of 



the Gorge of the Whirlpool rapids. 



Horseshoe fall to the railway bridges, lie along the cliff 

 of the Upper Great gorge. Noticing particularly the great 

 width of this section and the quietness and apparent great 

 depth of the water, one is prepared to appreciate more 

 fully the contrast in the dimensions of the next section. 

 Soon after passing the west end of the Park bridge the car 

 ascends 40 to 50 feet (12 or 15 m.) to the top of Johnson 

 ridge hear Hubbard point. This ridge is of Lockport lime- 

 stone and forms the highest rock barrier in the line of the 



