68 



PROTOZOIO ROCKS 



About the upper part of Lake Pepin, and north of it, the land lies generally level, 

 at least sufficiently so for all agricultural purposes, except in the immediate vicinity 

 of the streams, where the ground is often broken and abrupt. From Lake Pepin 

 south, to the Upper Iowa, the surface is rather more broken ; those portions, how- 

 ever, which are too uneven for other farming purposes, will afford a pastoral region 

 of great capabilities, leaving little to be desired by the shepherd and stock farmer 

 but a greater proportion of timber. From the base of the cliffs there often rise 

 copious springs, cool and clear ; these not unfrequently give rise to small streams, 

 which furnish abundance of delicious trout. The rivers are well stocked with bass, 

 carp, sunfish, pickerel, pike, and catfish. The prairies abound in game, especially 

 deer, grouse, pheasants, and partridges ; wild geese and ducks frequent the streams 

 in immense flocks. The elevated lands would furnish high, dry pasture-ground for 

 sheep, and the valleys and bottoms grain and hay for winter fodder. 



CLIFFS OF LOWER MAGNESIAK LIMESTONE, UPPER IOWA RIVER. 



SECTION V. 



ITS RANGE, EXTENT AND BEARING. 



The area occupied by the Lower Magnesian Limestone lies southwest of that 

 covered by Formation 1 ; forming a belt, with an average width of forty miles, and 

 through which the Mississippi flows, nearly centrally. It is coloured on the Chart 



