PLATE XLIX. 



GRANT AND STEVENS COUNTIES, 1888. WARREN UPHAM. 



These counties extend, in an east and west direction, from the broad, flat expanse 

 of the glacial lake Agassiz on the west to the morainic hills which diversify Douglas 

 and Otter Tail counties on the east. The hilly tract barely enters Grant county in 

 the northeastern township, where it is well developed on the south and west sides of 

 Pelican lake, and especially on the north side. Broad till undulations characterize, 

 also the southeastern township of Stevens county. These counties are wholly prairie, 

 with timber only in small groves in the vicinity of some of the lakes and along the 

 streams. 



These counties contain no rock outcrop, and the drift sheet would average per- 

 haps 150 feet in thickness. Under the drift the Archean rocks probably exist, 

 perhaps with scattered areas of Cretaceous. 



The two uppermost shores of lake Agassiz enter the western limits of these 

 counties, i. e., the Herman and the Norcross beaches. The former has an average 

 elevation of 1,050 feet at lake Traverse, but rising toward the north so as to reach 

 1,065 to 1,075 feet in northern Grant county. The latter is about thirty feet lower. 

 These beaches consist of gravel and sand, descending westwardly to a flat or nearly 

 flat expanse of till which is sometimes indistinctly stratified, about eight or ten feet, 

 and eastwardly somewhat less to a nearly equally uniform expanse of till. 



The deep well at Herman passed through 124 feet of till, striking granitic rocks 

 under a mass of limestone boulders. Water rose within four feet of the surface. 

 The total depth of the well is 260 feet. N. H. w. 



