202 



GEOLOGY OF EASTERN WISCONSIN. 



III. — Os THE West Slope op the Gebbn Bat and Rock Ritek Valley. 



Portland, Sec. 35, S. B. qr S. 



Milford, Sec. 33, S. W. qr ; S. 



Calamus, Sec. 18, near center S. 



Westford, Sec. 19, middle S. E. qr. — 



Eirst set S. 



Crossed by second set S. 



Trenton, McFarland's quarry S. 



Green Lake, Sec. 36 ■. S. 



Green Lake, Sec. 3 due west. 



Ripon, Sec. 19 S. 



Metomen, Sec. 1, N. E. qr S. 



Nepeuskin, Sec. 4, near middle south line S. 



Nepeuskin, Sec. 15, N. W. qr S. 



Nepeuskiu, Sec. 15, near center. S. 



Black Creek, watering station G. B. &M. R. R S. 



?o, T. 33, R. 20, Sec. 21, E. M, of S. W. qr S. 



Fio. 3. IV. — Gkeen Bay Peninsula, Fiord Region. 



Liberty Grove, T. 31, R. 28 E., Sec. 25, near North Bay. 



First set S. 9° E. 



Crossed by second set S. 4° E. 



Besides the striae, there is abundance of 

 evidence from other sources, testifying to 

 these movements. Where Archaean mass- 

 es protrude throiigh the Paleozoic forma- 

 tions, as in the towns of Berlin, Marquette, 

 Green Lake, Portland and "Waterloo, trains 

 of bowlders stretch away from them in the 

 direction of glacial motion. In the latter 

 case these trains have been traced to the 

 southern line of the state, 50 miles distant, 

 as illustrated in the accompanying map. 

 NX. ,' ■ ■ • "''I /^-■'' '"'n, I Evidence of a similar nature, though less 

 *7^ ax/ Hxii ^x',rir>nv conspicuous, is furnished by drift from 



peculiar beds or Paleozoic formations. 

 In addition to this, the contour of the rock surface furnishes cor- 

 roborative testimony. Elongated domes of rock having a linear ar- 

 rangement, with their longer axes parallel to each other, indicate the 

 direction of the moving ice. In the same way elongated drift hills 

 and ridges, often of a very great length, indicate the direction of 

 movement, either because they lie in it, in \vliich case they have a 

 rounded, flowing contour, or because they lie transverse to it, in 

 which case they usually have a sharp or irregular outline. On the 

 east side of the Kettle Eange, in the region of southwestward-point- 



