DRIFT PHENOMENA IN WISCONSIN 133 



West of the limit of the ice, the topography is equally character- 

 istic of the driftless area, though modified along the flats by the 

 deposits of the glacial drainage. 



Fig. 2. Topographic map (contour interval lOO') of a small area about Devil's 

 Lake, taken from the Baraboo sheet of the U. S. Geological Survey. The dotted w^est- 

 ern continuations of the contours represent extensions of the contours beyond the pub- 

 lished map. 



Ice movemefit. — From the course of the striae, it is known 

 that, as the ice advanced into this region, its general direction 

 of motion was west-southwest. This is in accord with the gen- 

 eral direction of movement in the western portion of the Green 

 Bav lobe. The location and direction of recorded striae appear 



