Conglomerates, ete., of Sauk County, Wisconsin. 445 
Saas Noite tap localities were visited by myself in the fall 
limestone. It is at the railroad station, Abelman. e Bara- 
boo River, in forming the Upper Narrows, has left upon the 
dam sandstone and conglémerates. No doubt can therefore 
remain that the tilted rock is Pre-silurian. 
The dip of the entire section of Azoic rock is to the north or 
slightly west of north. Its face is cut by numerous vertical 
joints in the same manner as the cliffs at Devil’s Lake. At the 
extreme southern end the rock varies from a compact dark-col- 
B 
ws 
oF 
= 
0g 
& 
Ss 
i) 
5 
* This Journ. II, vol. xxxvii, p. 226. 
