ST. JOHNS OR SALAMONIE MORAINE. 521 



North of Camden, along the Salaraonie Valley, a deposit of gravel and 

 sand overlies the till (No. "1" of the above section"). It appears to be a 

 dependency of the gravelly knolls of the moraine. 



In Blackford County, in the ^acinity of Montpelier, rock is exposed 

 along the river valley and the gas borings penetrate but a few feet of drift. 



In Wells County, in sees. 21 and 28, T. 25, R. 12 E., two wells each 

 strike rock at 52 feet. They are on a low till ridge. A well at Nottingham, 

 in section 34 of the same township, 72 feet in depth, does not strike rock. It 

 is almost entirely through till. On a level tract in the west part of this 

 township, in sections 19, 20, 29, and 30, several wells strike rock at 18 to 25 

 feet, while others much deeper do not reach the rock, showing that the sur- 

 face of the limestone in that region is very uneven. Wells near the south- 

 east corner of .Huntington County and in the western part of Wells County, 

 some of which are on the moraine and some on the inner border plain, are 

 in several instances 40 feet in depth, and laone of them strike rock. They 

 enter a blue till near the surface, and this extends down to the water-bearing 

 bed at the bottom of the wells. Mr. John McKee, a well-digger living near 

 Warren, states that on the plain near the inner border of the moraine he 

 often finds a bed of sand or gravel 4 or 6 feet thick just below the black 

 soil which covers the plain. Rock is exposed along the Salamonie bluffs for 

 several miles above Warren, and at intervals below that village. It also 

 outcrops along the Wabash and some of its tributaries in Huntington County. 

 It is probable, therefore, that the general thickness of the drift in these 

 counties is about that of the heig'ht of the surface above these outcrops, 

 which is but 50 to 75 feet. 



The wells in Huntington County are shallow and seldom enter the 

 rock. They usually pass through till until they enter the water-bearing 

 assorted material near the bottom. On the south bluff of the Wabash River, 

 in sees. 27 and 28, T. 28, R. 9 E., the following series of beds is exposed: 



ExjMsure in Wahash Rive?' Muff in sec. 27, T. ^8, R. 9 E. 



Till 10-20 



Sand and gravel 15-20 



Limestone 10 



Some of the gravel beds which are exposed just beneath the till dip 

 perceptibh' toward the west, but others are nearly horizontal. Those that 

 have a dip terminate at their upper ends abruptly, as if truncated, and the 

 till rests upon their upturned edges with a nearly horizontal under surface. 



