Stone.] 454 | [March 3, 
the railroad toward Canton, possibly extending to the Androscoggin 
River. 
Length 15 or more miles. . 
XXII a. Sumner— Buckfield Kame. 
Found along the valley of the west branch of the 20 Mile River. 
It is doubtful whether this is the main kame, or that along the east 
branch of this river. 
Length 6 miles. 
XXIV. Androscoggin Lakes — Portland System. 
This series of gravels was deposited by one of the largest Kame 
rivers in the state. The waters of the upper Androscoggin lake region 
united in one grand stream which flowed from Lake Welokenneba- - 
cook southward through a very low pass and down the valley of 
Black Brook and Ellis River. This Black Brook pass is bordered 
by cliffs many hundred feet in height and forms a natural gateway 
through the mountain range which borders the lake region on the 
south. ‘There are three other low passes through this range but I can 
find no proof of any extensive overflow except by this. From Rum- 
ford Point the course of the kame is up the valley of the West 
Branch of the Concord River and through alow pass in Woodstock to 
Bryant’s Pond. In this part of its course it is called the Whales- 
back. It follows the valley of the Little Androscoggin to Oxford, 
where the river turns to the eastward, while the kames keep straight 
on southward through Poland, New Gloucester and Gray, here being 
_a series of reticulated kame-plains. Northward from Walnut Hill 
Church there is a break in the system of a mile or a mile and a half. 
A broad ridge or solid plain extends from a little north of Walnut 
Hill to Cumberland Centre, where is another break of three-fourths 
of a mile in the system, and then another broad ridge reaches nearly 
to the Presumpscot River in Falmouth. Here is another break near - 
the river. Not far south of the Presumpscot three ridges begin and 
reach southward to Stevens Plain, Westbrook, with some short inter- 
ruptions. Here is another gap of about two miles and then we find 
extensive gravel bars, one on Bramhall Hill and another on Munjoy 
Hill, Portland. South of Portland is a gap in the series for nearly 
one mile and then begins an interrupted series of ridges which 
reaches into Searboro, and perhaps to Old Orchard. From the Pre- 
sumpscot south the gravels are arranged in two or more parallel 
lines of broad ridges or plains. In the jaws of the Black Brook — 
Pass and on the down slopes of that stream and of the Ellis there are 
