The Abandoned Shore Lines of Green Bay. — Taylor, 325 
ing to the same series but it is not known that any of them 
were high enough to be islands. 
Northward from Gladstone the country is wild, and where 
it is not a swampy sand plain it is a dense forest. Evidences 
of submergence were seen from the train for a considerable 
distance northward. Where the railroad attains the level of 
the sand plain, a few miles northwest of Gladstone, it is about 
L30 feet above the lake. At Brampton the lower ground has 
plainly been submerged for two miles north and south from 
the station. By the profile of the North Western railroad, the 
altitude of Brampton above lake Michigan is 159 feet. North 
of this, Maple Ridge is :5TS feet: Lathrop, 460 feet; Helena, 
526 feet; Swanzey, (54(5 feet; and Forsyth, where the sand 
plain ends and the railroad passes into the mountains, is 73<> 
feet. The general appearance of submergence seemed to ex- 
tend for some distance north of Lathrop. but no evidence of 
a shore line was seen. The sand plain rises pretty rapidly 
toward the north and abuts against the rugged crystalline 
hills of the Mineral range and surrounds its outlying rounded 
knobs as perfectly as if the sand were a body of water. North 
of Lathrop the plain becomes very much pitted and holds 
many small lakes and ponds. Subsequently the highest shore 
line was found on the hills back of Marquette strongly devel- 
oped at an altitude of 590 feet above lake Superior. Bui a 
distinct beach marking the highest level of submergence was 
not seen on the slope south of the mountains. In the follow- 
ing table I have presented a list of the principal localities 
observed, with the altitude above sea level of the highest 
shore line; or, where that was not found, the highest observed 
evidence of submergence. The measurements were all by 
aneroid and are, therefore, only approximate. Those near 
railroad stations or the lake shore, however, are probably fair- 
ly accurate. The letter / stands for terrace and /• for beach 
ridge. 
Level of lake Michigan (U.S. Lake 8urve\ 582 
Beach southward from Two Rivers, Wis 582 
Two Rivers (aboul lat. X. 1 1° 10' 1 582 
Kewaunee t 59*! 
Green Bay r (102 
St urgeon Bay r ttl i 
Kirch Creek. Mich. ((5 miles north of Menominee). ... r (530 
Burnt Bluff r r05 
South Bn\ hill r il"> 
