Wisconsin Kettle Moraine. 217 



erly from a point in La Salle county, to near Chatsworth, a dis- 

 tance of about forty miles, " This is gravelly and sandy, giving 

 it a distinctive character as compared with the adjacent prairie." ^ 

 This is quite too meager to base an identification upon, but I have 

 thought it worthy of quotation here. At Odell, which lies near 

 this ridge, the drift is said to be 350 feet deep.^ 



On the raih'oad line from Chicago to Kankakee, there is no 

 recognizable indication of the formation under consideration. 

 Southwestward from Kankakee, on the line to La Fayette, Ind., 

 there are a few mounds and ridges that bear a somewhat mo- 

 rainic aspect, but they are isolated in a generally level tract of 

 lacustrine, rather than glacial, topography. They are, perhaps, 

 remnants of a formation that has been largely eroded or buried. 

 Near Fowler, in Benton county, Indiana, there is a belt of low 

 mounds and ridges, accompanied by shallow depressions, that 

 quite closely resemble the Kettle range in its more modified 

 phases. Boulders appear upon the surface, and, in the more im- 

 mediate vicinity of the village, are large and numerous. This is 

 probably a portion of the "stream of boulders two miles wide," 

 which Mr. F. H. Bradley mentions as extending through the 

 eastern part of Iroquois county, Illinois, and the central part of 

 Benton county, Indiana,^ and which he attributes to floating ice. 

 He does not, however, mention the associated topography or un- 

 derlying drift formation. South of this low range, the country 

 again becomes level, or gently undisi^ing, as far as the Wabash." 



The Indiana geologists have not yet critically examined the 

 heavy drift region in the northern part of the state, through 

 which the moraine might be supposed to pass, but in such prelim- 

 inary inspection as has been made, they have not recognized any 

 prominent moraine-like accumulation. The superficial expres- 

 sion of the region is quite monotonous, and presents to view de- 

 posits of sand, gravel, lacustrine or pebble clays, but more 

 rarely the coarse boulder clay or mixed material, that I regard as 

 the unmodified ground moraine. The modifying agencies which 

 produced this phase of the deposits, would be antagonistic to 



J Geol. Surv. of 111., Vol. IV, p. 237. » Geol. Snrv. of III., Vol. VI, p. 237. 



a Geol. Surv of 111., Vol. VI, p. 236. 



