1 7 (> The American Geologist. March, 1894 
above the sea, ami the fainter glacial lacustrine levels may 
extend above this bight. 
About four miles south of the village of Crown Point is a 
high terrace standing well above the surrounding plain, before 
the mouth of a small valley, and so distinct as to easily at- 
tract attention. No (dear exposure of its material could be 
found, but it seemed to consist of drift, almost entirely un- 
modified. The top is perhaps Haifa mile broad and two miles 
long and pitted throughout with small kettle-holes, twenty to 
fifty feet in diameter. It is about 560 feet above the sea. I 
regard this as a typical moraine terrace* formed against the 
ice, when it stood at thathight, by the combined action of the 
ice, in melting and depositing, and of a stream from the small 
valley which opens into it. The main deposit was from the 
ice, not levelled by standing water, but by action of the small 
stream. If that be true, the water levels are later than this 
terrace, and, in fact, faint lower terraces are cut on its sides. 
Until Clinton county is reached, the old shore lines are no- 
where far from the present lake. In Chesterfield, near Owen 
Ryan's, the finest beaches were seen, and on an abrupt shore. 
At present water level, in a small cove between the rocky 
pointS, is the first pebbly beach : above this in the same cove are 
three exactly similar beaches at 290, 335 and 365 feet; there 
the rocks disappear in two distinct terraces at 386 and 423 
feet, only to re-appear above and yield three more pebbly 
beaches up to 550 feet. A mile or two north distinct terraces 
appear at 470 and 530 feet. 
('Union County. On reaching the An Sable river the higher 
levels arc found back six or seven miles from the lake, while 
the lower levels are formed of the sand delta of the An Sable. 
The upper limit was not measured, but the second level is at 
'I'M) feet, corresponding well with the second level on the 
Winooski. The plain from here north is similar to that of the 
Vermont side, a clay plain, crossed by the two sand deltas of 
the Au Sable and Saranac. The sand banks on the south side 
of this delta, near Port Kent, are said to contain many marine 
shells. 
The Saranac river is simply a repetition of the An Sable, 
*The so-called "moraine terraces'' of the Geology of Vermont are 
abundantly indented with kettle-holes. 
