302 Tertianj. 



des Noquets, and the valleys of the Menomonee and Manistee. The 

 coarse drift described as occurring beneath the drift proper, at several 

 points along the shore of Lake Superior, seems to be entirely wanting 

 in this district. 



Starting from Mackinac westward, the furrows and striiie were 

 noticed at the bottom of St. Martins baj^, and two miles north of Pine 

 river, on a point composed of almost horizontal ledges of limestone, 

 having an average direction from E. to W., some running N. 80° E., 

 and others S. 70° and 80° E. At Payment point the direction being 

 from N. 50° to N. (50° E. At the bottom of Big Bay des Noquets, on 

 the west shore of the eastern cove, the direction is E. and W. At the 

 mouth of the Escanaba, in Little Bay des Noquets, the direction is N. 

 E. and S. W. At Oak Orchard, on the west shore of Green ba}^ the 

 direction is N. 15° to N. 20° E. At the saw mill, near the mouth of 

 the Menomonee, the direction is E. and W. ; six miles above Kitson's 

 trading house, E. N. E. and W. S. W. ; three miles above Sturgeon's 

 falls, N. 65° E.; foot of the Lower Bukuenesec falls, N. 70° E.; Lower 

 Twin falls, N. 60° to N. 70° E.; and at Upper Twin falls, N. 65° to 70° 

 E. From Green bay, southwestward, they were noticed at Mehoggan 

 point, N. E. by E. and N. N. E. ; at Mehoggan falls, N. E. by N. ; three 

 miles west of Milwaukee, N. E. ; and at Strong's landing on Fox river, 

 N. E. by E. 



The true drift seldom approaches the shores of Lake Michigan and 

 Green bay, but it is met with in ascending the rivers at no great dis- 

 tance. Its absence from the coast is the result of subsequent denuda- 

 tion, when the waters of the lake stood at a higher level than at present. 

 It was observed at Pointe aux Chenes, and for a distance of six miles 

 toward Payment point, and on Potawatomee and some of the higher 

 islands. The thickness at Green baj^ was found on boring to be 108 

 feet. 



Near the junction of the Machigamig and Brule, where the united 

 streams take the name of Menomonee, the river banks are composed of 

 drift, forming bluffs 100 feet or more in height. The drift is com- 

 posed of sand and layers of gravel more or less interspersed through it, 

 and covered more or less with bowlders. The higher lands adjoining- 

 are covered with the same materials. The country adjacent to the 

 Manistee is likewise covered with the drift sand and pebbles. The 

 whole country' drained by the White-fish and its branches, and the 

 Escanaba is likewise covered with the drift. The drift clay is well 

 marked, in man}' places, below the drift sand, especially upon the 



