86 GLACIAL GEAVELS OF MAINE. 



sea, yet the end is only a few feet above tide water. Toward the north the 

 ridges of this system are broad and massive, with gentle side slopes. The 

 stones are well rounded throughout the whole length of the system, and 

 among them are a multitude of bowlderets and bowlders, up to 3 feet in 

 diameter. It lies on a southern slope favorable to the flow of the water 

 until the ice was nearly all melted. Its course is quite free from meanders. 

 The elevation of the northern end is not precisely known, but the glacial 

 stream, at the time the sea stood at 230 feet,' would flow into it not far from 

 the north end of the system. This is where the broad, almost plain-like, 

 ridges, inclosing kettleholes, are found. The large size of the bowlders 

 in this system makes it qiiite probable that this was the work of a subglacial 

 river. 



Length, about 10 miles. 



CRAWFORD SYSTEM. 



A short deposit of glacial gravel is found about 2 miles north of Craw- 

 ford Church, in a low valley leading south from Crawford Lake. This val- 

 ley contains a small brook which flows northward and has partially eroded 

 the kame, though the brook is but little more than half a mile long. A 

 valley leads over a low divide from this point southward, but no gravels 

 have been found near the height of the pass. Directly in front of this pass, 

 toward the south, is a plain of sand and gravel about one-fourth of a mile 

 in diameter. It is situated near the northwestern angle of Love Lake, in 

 the southern part of Crawford. The plain is rather level on the top, and 

 the material is finer toward the south. It rises steeply above the surround- 

 ing till to a height of from 6 to 15 feet. It thus has every appearance of a 

 delta. Its elevation above the sea is probably from 250 to 300 feet. No 

 marine clay appears below this point, and I regard the plain as having been 

 deposited iii a small glacial lake. Near the southwestern angle of Love 

 Lake there is another and longer gravel plain, and from that point a some- 

 what discontinuous two-sided ridge extends southward into Ts. 19 and 20. 

 It is for several miles nearly parallel with the outlet of Love Lake. At 

 the road from Crawford to East Machias it leaves this valley, and the road 

 is made upon it for about 1 mile south, when the system bends southwest- 

 ward. It is said to end in a level sand-and-gravel plain near the East 

 Machias River, not far south of Round Lake. 



