INNER BORDER OF THE MIAMI LOBE. 331 



Creek Valley, in Hamilton County, and also the abandoned valley connect- 

 ing the Little and Great Miami valleys, in Warren County, by this moraine 

 and the freshness of the drift there exposed, indicate that the upper portion 

 at least was deposited contem^joraneously with the moraine. However, the 

 well sections in Mill Creek Valley south of the moraine seem to suggest 

 that much of the filling- may have taken place in the earlier advance. 



As above noted, there is some uncertainty whether the lowland tract 

 connecting the Little and Great Miamis through western Warren County 

 contains a deep buried channel or waterway capable of carrying a stream 

 from one valley to the other, for the reason that rock is struck at slight 

 depth in wells in the western part of the swampy tract connecting these 

 streams. A well at Mrs. Stewart's, on the east side of the county line road 

 (between Warren and Butler counties), struck rock at 13 feet, and one at 

 Mr. Schwab's, about one-half mile farther north, at 20 feet. These are 

 both in the valley, the latter being near its center, the former near the south 

 side. Such meager evidence does not, however, preclude the possibility 

 of a deep channel existing in this low belt, though it throws doubt on its 

 occurrence. 



A few records of wells were obtained in the Indiana portion. Mr. 

 Burt, a well driller residing at Liberty Ind., who has made wells on the 

 drift ridge near Liberty, noted above, reports that they penetrated yellow 

 and blue till to a depth of about 30 feet, and then entered a black earth 

 into which they were carried for a foot or two, the deepest well being 33 

 feet. In a well on the east slope at Mr. Bamon's. one-half mile north of 

 Cottage Grove, Mr. Burt found many bowlders about 30 feet below the 

 surface. Possibly an old land surface or stream bed was reached at this 

 well. Two other wells were reported by Mr. Burt which may have passed 

 into a di-ift older than Wisconsin in their lower portion. At Beechy Mire 

 post-ofiice Mr. Lybrook's well entered a yellow clay below the blue till at 

 a depth of 33 feet. At Salem, about 3 miles southeast of Liberty, Mr. Burt 

 made a well which passed through the following beds: 



Section of a vxU southeast of Lihei^ty, Ind. 



Feet. 



Yellow till 8-10 



Blue till 25 



Yellow clay, not noticeably pebbly, at bottom of well. 



