GEOLOGY OF LA SALLE COUNTY. 



167 



Kquisetum sj^vaticum, 131. Branches compound 

 racemed, sheaths loose. Wet, shady places. 



ELEVATIONS. 



In Part I, pag-e 19, there is a table of elevations of 

 the raihvay stations in the count}^ We add a few 

 heig-hths above sea level. 



The hio-hest point in the county is in Township 

 36 north, Rang-e 1 east, 3d P. M., Sections 2 and 

 3, 931 feet, or the northeast part of Mendota Town- 

 ship. On the centre line of this township, from west 

 to east, beofinninof on the west line at mile and half 

 mile stations, half mile in parenthesis, we have 875, 

 852,831, 838, (824), 790, 798, (781), 751 feet. 



Township 32 north, Rang-e 1 east, west to east on 

 south line of fourth tier of sections we have, beg^inning* 

 a mile east of west line, 600, 650, 658, — 655, 647, 666 

 feet- 

 Three miles farther south 681, 670, 678, 669, 674, 

 —672, 661 feet. 



One and a fourth miles south of the 674 point, or 

 3^ miles south of Tonica, there is a point 704 feet 

 hig'h. 



Osag-e and Groveland both have small areas above 

 700 feet hig-h. On the north side of Section 31, Grove- 

 land, a hillock reaches 730 feet; Section 26, Otter 

 creek, rises to 710 feet; Ransom Station, in Allen 

 Township, is 703 feet to top of rail in front of station 

 house. Land to the west, south and north is 25 or 30 

 feet higher, and cannot be less than 730 or 740 feet 

 above sea level. In the southwest corner of Brookfield 

 a point reaches 738 feet. 



In W^est Farm Ridg-e and Deer Park are points 

 over 700 feet above the sea, not much less than 750 feet 

 in heig-hth. The hig-hest points in South Ottawa must 



