—_— ~~ 
et aS 
‘sharp contrast to the almost boulder-? 
western side of the moraine has a much less 0 
margin. The continuous till mass that Ss the 
Ground seems to be delimited by an irregular “line” which ranges 
about 50 to 110. feet above Buy aeeds Bay in tne Frocesset and Fal 
much as 18 or 20 feet in longest diamete Herciv a five- 
lacks. an erratic that is not at least 
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pitted plain. In general the boulders « 
near the eastern margin of the moraine. 
intensify the contrast noticed when one cros 
PS cctuphy of. the moraine to the smoother, alzo 
of the outwash plain. The presence of so many isr 
which are granite similar to the bedrocz many mil 
northwest of. the Cape,is eloquent testizory to = 
er of the ice that brought them. 
On the east the moraine is marked Sy a creminent, discontin 
ridge of +ill 20 to 60 feet high,heavily leaded with boulders, 
overlooks the gently-sloping surface of j 
This ridge or moraine-front can be seen 
outwash plain about three quarters ofanmil 
and about a mile north- of the center o 
Very few cof the boulders perched on top cz 
out and down the slopes to. the east by fro 
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Oo 
+ 
quadrangles... West of this there.are only isoleted patches of 
some of vnich overlie sand and gravel. g t 3 
S a 
part of the.moraine, but are interpreted as local messes of till 
posited by the ice during its retreat from the moraine westward 4a- 
cross what is now Buzzards Bay. East of the lize cthere is an almost 
continuous concentration of blocks. West of 2% tre blocks occur in 
scattered patches some, embedded individuelly in the fine gravels 
that underlie nae strip of lower ground,ot th [ 
either as isolated units or in clusters. 
vated along this line one can observe sand} 
ders and lies on top of distinctly-leyered 
of the pitted plain. This confirms the cso 
wes deposited by ice which readvanced and nm 
gravels. The western boundary of the moraine 
way, Route 28, -at several places between 
and West Falmouth. Southwestward the bound 
lower elevations and presumably disappears 
Woods Hole quadrangle where the waves of 
cliffs in the till of the moraine. 
At some places along the western side of the moraine, however, 
there is no such definite Deundet v= Insves a. -Spicuous morainic 
landscape merges’ with the main till-cover east,and ex- 
tencs west of it over an irregular zone cra% E r width up to 4 
mile or more. Such a zone may be seen in the e beuveen., the inter- 
section of the Pocasset-Forestdale Road } and the crest 
of the morainic belt east of this. ‘umérous pits and roadcuts in 
this vicinity show that the zone is underiain by i sularly strati- 
fied sand and gravel which contains scores o 
engular blocxs. 
