CHAPTER LXV. 
REPORT ON THE GEOLOGY OF HURON COUNTY. 
BY M. C. READ. 
TOPOGRAPHY. 
The distinctive peculiarities of the topography of Huron county are 
apparent only after a somewhat minute and careful observation. Com- 
mencing at the north-west corner of the county, a broad and level sur- 
face of prairie, with peaty soil, modified in places by sand dunes and 
valleys of recent erosion, is a marked characteristic. This is followed on 
the north and east by other broad and higher terraces reaching to the irreg- 
ular undulations of the clay Drift of the divide. The outlines of these 
successive terraces are very irregular, and the ascent from one to the other 
so gradual, that the changes of level are often unnoticed; the attention of 
the observer being attracted only to the large areas which mark the old 
water-levels, the difference in elevation of these being overlooked. The 
elevated land, extending from the northern divide through Townsend 
township, terminating at Berlin Heights, in Erie county, forms a high 
promontory, which reached far out into the Lake when the land to the 
west and north-west of it was covered with water. On the northern face 
of this promontory, the successive steps of the terraces which are read 
with difficulty in most other parts of the county, are brought into close 
proximity, the record of each successive stage in the depression of the 
waters of the Lake being plainly legible, as will be seen from the wood- 
cut below. ) 
TERRACES AT BERLIN HEIGHTS. 
Above Lake Erie. 
185 feet; 
fables ay 
<7 107 ** 
Darah K's ye 
10 66 
15 be 
J Level of Lake Erie.. . 
