ON THE WISCONSIN RIVER. 513 



Feet. 



1. Thick-bedded white and brown sandstone, .... 10 



2. Slope unexposed (probably the greensand-beds), . ■ • 130 



3. White sandstone, ....... 10 



4. Slope, ......... 12 



5. White and brown coarse-grained sandstone, in heavy beds, . . 102 



6. Cliff of Lower Magnesian Limestone, ..... 00 



Total, . 360 



From the summit of these bluffs there is an extensive prospect of English 

 Prairie, which appears to be about two miles wide, bounded by a range of hills 

 with graceful slopes. 



About seven miles above English Prairie is Richland City, on the right, recently 

 laid off, where there is a good landing for steamboats, the banks being about four 

 feet high immediately at the river, but increasing in height a short distance back. 

 The soil is light and sandy in the low lands, but improves in quality towards the 

 bluffs. The population on this part of the Wisconsin is rapidly increasing. 



Five miles above Richland (which is situated in Township 9 north, Range 2 west, 

 of 4th Principal Meridian), soft, easily-crumbling, white and brown sandstone is ex- 

 posed, fifteen feet thick, presenting a waved outline. Above these beds there is a 

 gradual slope to near the top of the hill, which is capped with magnesian lime- 

 stone, F. 2, which can be traced with some little interruption along the brow of the 

 hills for two miles, gradually increasing in elevation, until it finally forms a mural 

 escarpment of forty-five feet : dip slightly towards the east. 



At the upper end of the exposure, a bed of five feet of micaceous white and green 

 sandstone was found, at an elevation of forty-two feet, resembling in lithological 

 character the beds at Mountain Island, above F. 1, c, and containing Orthis, Lin- 

 gulas, and remains of Trilobites ; also fucoidal-like impressions, in yellow, laminated 

 layers. Under it are forty-two feet of heavy-bedded white and brown sandstone. 

 The whole height of this hill is two hundred and fifty feet, and it appears to be 

 composed entirely of different members of F. 1. 



The river now winds for seven miles through alluvial lands, supporting a heavy 

 growth of oak, hickory, bass, and maple, with a few pines and cedars. In Section 

 25, Township 8, Range 3 west, of 4th Principal Meridian, about a mile below 

 Helena, the rocks are exposed at intervals, as follows : 



1. 



Thick-bedded white and brown sandstone, corresponding to the 

 beneath the Trilobite-bed of last section, 



beds 



Feet. 



50 



2. 



Slope, with fragments of green and yellow sandstone scattered ove 

 surface, ....... 



r the 



34 



3. 



Soft, crumbling, white, yellow, and brown sandstone, in thick beds, 

 thin, ferruginous bands and spots, .... 



with 



22 



4. 



Slope, where no rock is visible, .... 





49 



5. 



Intercalations of sandstone and magnesian limestone, in layers 

 four inches to two feet, ..... 



from 



18 



6. 



Ash-coloured, silieeo-calcareous layers (St. Croix Trilobite-bed), 



65 





5 



