574 THE ILLINOIS GLACIAL LOBE. 



from limestone. The private wells in this city usually obtain water from 

 gravel at a depth of about 20 feet. A few in the south part of the city, 

 outside the limits of the Kishwaukee gravel plain, are sunk to greater depth, 

 but seldom exceeding 40 feet. 



At the village of Caledonia, wells usually obtain water from beds of 

 gravel beneath till at a depth of 30 or 40 feet. The following table of wells 

 on farms in the neighborhood of Caledonia will serve to illustrate the varia- 

 tions in depth in the northern part of the county. It will be noted that 

 only two of these wells enter the rock, viz, those in sec. 30, T. 46, R. 3 E., 

 and sec. 7, T. 45, R. 3 E. 



Depth of wells in northern Boone County. 



Feet. 



John Van Anthrop, sec. 34, T. 46, R. 4 E 42 



William Millard, sec. 35, T. 46, E. 4 E 34 



William Smith, sec. 26, T. 46, R. 4 E 63 



James Hineman, sec. 26, T. 46, R. 4 E 60 



Sec. 30, T. 46, R.3E. (rock at 50 feet) 150 



Sec. 7, T. 45, R. 3 E. (rock at 54 feet) 110 



Sec. 4, T. 45, R. 3 E. (several wells) 30-40 



D. S. Kelly, sec. 3, T. 45, R. 3 E 35 



J. F. Ramsey, sec. 3, T. 45, R. 3 E 30 



John Church, sec. 2, T. 45, R. 3 E 35 



E. F. Bailey, sec. 1, T. 45, R. 3 E 21 



Philip Coleman, sec. 6, T. 45, R. 4 E 24 



Peter Mclntyre, sec. 6, T. 45, R. 4 E 25 



Peter Oleson, sec. 5, T. 45, R. 4 E 22 



John Stall, sec. 4, T. 45, R. 4 E 76 



J. Miller, sec. 3, T. 45, R. 4 E 63 



Ole Nelson, sec. 3, T. 45, R. 4 E 65 



T. L. Bowman, sec. 3, T. 45, R. 4 E 48 



Herbert Young, sec. 3, T. 45, R. 4 E 35 



In Bonus Township, situated northeast from Belvidere, the wells on 

 the upland between the Kishwaukee River and Piscasaw Creek in several 

 instances reach a depth of about 60 feet without entering rock. 



Although rock is usually struck at comparatively slight depth in the 

 southeast township (T. 43, R. 4 E.), a well at a cheese factory in sec. 15 

 did not reach rock at a depth of 83 feet. Several wells in sees 8, 9, 16, 

 and 17 of this township enter rock at depths ranging' from 4 feet to 20 feet 

 on an upland standing about 900 feet above tide. On Coon Creek gravel 

 plain, in sec. 3 of this township, at an elevation less than 800 feet above 

 tide, a well 45 feet in depth does not reach rock. A well at Mr. Ryan's, in 

 sec. 33, at an elevation about 775 feet above tide, is 86 feet in depth and 

 strikes rock at 33 feet. Wells in sec. 23 reach a depth of 30 or 40 feet 

 without entering rock. 



