banked against and int tre Sancwich moraine; its western side lay 
against the frayed margin cf tre ice sheet, and its eastern one a-~ 
gainst the floor of glacio-fluvial gravels beneath the Buzzards bay 
moraine. The outer, cc 3 i? margin of the fan lay somewhere 
out in what is now Buzzards ay. 
ly parts of the orizizal sicping surface remain today, because 
the plain was indent xettle-holes and by gullies produced 
te uy na lerrest of the remnants comprises 
acove sealevel, east of the 
the Bourne Bridge. Southwest- 
ward from the bridge toward Pecasset many smaller gravel ceposits 
cc 
Oo 
with smooth, cently slopins tcps rise to altitudes of only about 1C0 
feet. ravel knobs between Focasset and State highway, Route 28,at- 
tain altitudes of 70 or 8&0 feet, and three miles Partner sSoulinrace 
in Megansett and North Falmowla the smooth tops of similar deposits 
heave altitudes of only ebout 30 feet. Still farther south, narrow 
plains of gravel betwéen Crocker Ford and West Falmouth lie only 20 
to 25 feet above the level.or Suzzards Bay. 
Surface drainage began to @issect this plain soon after it was 
conpleted,and several furrows lize those on the Mashpee pitted plain 
were formed. Southwest of NMerumsnt Seach two excellent examples of 
these have almost varallei courses. The lower end of the larger one, 
occupied by Pocasset River, is crowned. The narrow, branching, up- 
per end of this valley *bésirs near State highway, Route 28, about 
two and a half miles south of the Bourne Eridge. Five-eighths of a 
mile northyvest of this furrow lies the other which heads in-a kettle- 
hole at Clay Pond. A much rarrower third valley extends from a group 
of kettles now occupied by torés ani cranberry bogs in South Pocasset 
southwestward to Squeteazue Sertor at Cataumet. Many smaller and 
shorter gullies in the area between Buzzards Bay and the moraine 
likewise have southwestward coursés. The shortest course for drain- 
ace from the upper ends of three furrows to Buzzards Bay would 
obviously be almost due tead of s outhwest. The trend of the 
vallevs, therefore, coni idea that the original slope of the 
gravel piain was southwesivwarc.- Peeresss in size of the outwash ma- 
terials from coarse grave} to medium and fine - sand and 
gravel iniiest Falmouth also the source of these sedinents 
jay northeast near the Cac 
11 the buried ice had melted a- 
Freeman Pond, and Upper Pond, 
bottom of the Pocasset Riv- 
xe bottoms of tributary gul- 
Se Cuffs Pond simi-~ 
the narrow valley west of 
The furrows were formed 
rave been found in the Sandwich 
ae were encountered at @ 
at lain. For example,the chips 
dD i ink are found almost everywhere 
in the Sandwich moraine sre coziom in the sravels around Beaton Bog 
in South Focasset,but in the Suzzards Say moraine only a few humdred 
