130 GLACIAL GRAVELS OF MAINE. 



in this investigation, I give a single observation made about a half mile 

 south of where the osar crosses the Kenduskeag River, 



The surface was wholly covered by clay and silty clay. A well had 

 been dug 200 feet or more in front of a house. This was an unusual 

 position and required investigation. Inquiry showed that two or three wells 

 had been dug near the house, all penetrating 3 or 4 feet of clay, and, 

 deeper, dry gravel and cobbles, until the wells caved in. One of these 

 wells was 80 feet in depth. Afterwards a well was dug a few rods back of 

 the house, reaching water at the depth of 15 feet m clay, and the same 

 experience was had when the well in front of the house was dug. The 

 house was situated right on the line of the bui-ied osar prolonged. Hence 

 it was evident that the osar had disappeared simply because it had been 

 flanked and covered b}^ 80 or more feet of clay. 



With a few short gaps, where it may exist, but, if so, is covered by the 

 marine clay, the osav continues southwestward over a rolling country. 

 Two miles north of Hermon Pond it spreads out into a hill or table-like 

 plain, varying from one-fourth to one-half mile wide and more than 1 mile 

 long, rising 50 feet above the marine clay that covers its base. The surface 

 is rolling and incloses shallow basins. Although not large as compared 

 with the plains of many of the gravel systems, unless we except the plains 

 in Abbott, these are probably the largest plains in the whole line of the 

 system. They are not true delta-plains, ending in sand and clay. After a 

 short apparent gap the ridge begins again and extends past Hermon Pond 

 station to the north shore of Hermon Pond. The ridge is cut through by 

 the Maine Central Railroad just at the station, being there covered by 

 marine clay, and a short distance south of that point the gravel has been 

 extensively excavated by the railroad company. The gravel reappears on 

 the south shore of Hermon Pond and passes a short distance east of West 

 Hampden. From this point southward the gaps become a constant and 

 essential feature of the system. South of here the ridges are nowhere more 

 than 1 or 2 miles long, and often they are so short and broad that the}" may 

 be called plains or domes rather than ridges. These discontinuous gravels 

 extend in nearly a straight line from West Hampden to Winterport Village, 

 passing nearly 1 mile west of Ball Hill Cove, near which point it unites 

 with the Medford-Hampden branch. The gravel appears at the cemetery, 

 Winterport, and at various gravel pits in the southern part of that village 



