80 GLACIAL GEAVELS OF MAINE. 



system, but I have since examined several wliicli proved to be beach gravel. 

 I therefore pro\dsionally mark the end of this system in the northern part 

 of Edmnnds. Length from Edmunds to T. 9, E,. 4, 115 miles.^ 



NEW LIMBBICK-AMITY BRANCH. 



This branch extends from near the center of the town of New Lim- 

 erick through Linneus, Gary Plantation, and Amity, and joins the Houlton 

 branch near the north line of Orient. Toward the north this osar is quite 

 continuous and prominent, with conspicuous meanderings. Southward it is 

 somewhat interrupted hj short gaps. It traverses a rolling plain, and sev- 

 eral times passes from one valley to another over a low divide. South of 

 where this and the Houlton branch unite, the ridge is larger and more con- 

 tinuous than is either branch for several miles north of their junction. The 

 average size of this branch is about as large as the Houlton branch, though 

 it does not expand to so great size as the latter at Carys Mills. Length, 

 about 20 miles. 



SMYRNA-DANFORTH BRANCH. 



Measured by the amount of gravel which the Smyrna-Danforth glacial 

 river deposited, it deserves to be classed as the main tributary and the 

 Houlton River as a branch. According to this nomenclature, the system 

 ought to be known as the Smyrna-Dennysville system. But, on the whole, 

 there are such advantages in considering the longer tributary as the main 

 river that the Houlton branch has been considered the main one, although 

 it is by no means certain that a careful exploration Avill not show the 

 Smyrna branch to be longer than that which passes near Houlton. 



The other connections of the Smyrna series are uncertain. A ridge of 

 gravel, probably glacial, is reported as being found a short distance south 

 of St. Croix Lake. The divide between the Masardis River, flowing north- 

 ward, and the east branch of the Mattawamkeag is so level that the waters 

 of one stream have been diverted into the other by a ditch. The valleys 

 of these two streams thus form a continuous valley with slopes favorable 

 for a long osar system to extend from the vicinity of Masardis south and 

 eastward to Smyrna. I crossed the Masardis River in the No. 9 townships 

 and explored its valley for several miles, but no gravels were found near 



1 1 am indebted to Mr. John C. Carpenter, of Houlton, for much valuable information relating 

 to the gravels of Aroostook County. 



