630 THE GLACIAL LAKE AGASSIZ. 



Within the area of Lake Agassiz hg'nite fragments have been thus 

 fonn<l plentifully in many localities, among which the following may be 

 specially noted: In digging a cellar close south of the Mustinka River, in 

 section 32, township 127, range 47, near its entrance into the north end of 

 Lake Traverse; in wells near Tintah and at Campbell, Minn.; in a ravine 

 which intersects the Herman and Norcross beaches, in sections 32 and 31, 

 Keene, 8 miles north of Muskoda, Clay County; in the sand of the artesian 

 wells on the Lockhart Farm, Norman County, at the depth of 141 to 157 

 feet; similarly in sand between 161 and 165 feet below the surface in 

 artesian wells at Carman, Polk County; along the channel of the South 

 Branch of Two Rivers, in the southwest part of township 160, range 44, at 

 a distance of a half mile to 2 miles east of its crossing by the Roseau Lake 

 trail, as reported by Mr. Charles Hallock and Maj. S. Holcomb, the largest 

 piece found being about 1^ feet square and 4 inches thick; and on the 

 Roseau River, in Manitoba, about 20 miles east of Dominion City. Pieces 

 of lignite are somewhat frequent on portions of the shores of Red Lake, 

 Lake Winnebagoshish, and Namekan Lake, the last lying on the interna- 

 tional boundary, next southeast of Rainy Lake. They also occur in 

 gravel beds of the Pembina delta of Lake Agassiz, having been especially 

 noticed at the springs in the south bluff of the Pembina River, 2 miles 

 south of Walhalla. 



It is not advisable, however, that any search should be made for dis- 

 covery of lignite beds in remnants of the Cretaceous strata still existing 

 within this lacustrine area; for, while the lignite is of poor quality for fuel, 

 all its numerous known deposits thus occurring in several counties in Min- 

 nesota, and on the Sheyenne and in the Turtle Mountain, North Dakota, 

 are too thin to be worked. On the upper portion of the Souris River, in 

 Manitoba and North Dakota, from the vicinity of Minot northward, and on 

 the Northern Pacific Railroad, 40 miles west of Bismarck, beds of similar 

 lignite, but belonging, as in Turtle Mountain, to the Laramie series, the 

 highest of the Cretaceous, ranging up to 8 feet in thickness, have been suc- 

 cessfully mined, their product being used for fuel by many settlers in this 

 vast prairie region. 



