NATURAL HISTORY AND PHYSIOGRAPHY OF NEW BRUNSWICK. 32 7 
County Line Mountain, rising abruptly some 700 feet above the 
water (and hence 2045 above the sea), and of the great central 
plateau to the westward, with its clear-cut edge well-nigh as level 
as the ridge of a roof. Four great gaps, however, appear in the 
encircling hills. There is one to the northwest, occupied appar- 
ently by the stream heading up near Milnagek or Island Lake, 
and there is another towards the southeast in the direction of the 
Dungarvon. I have no question that we are here concerned with 
a single ancient valley, the morphological head of this part of the 
Dungarvon, cut by an ancient river, which, rising on the plateau 
near Fox Lake, originally flowed across the present Crooked 
Deadwater into the Dungarvon. This connection must, how- 
ever, have been ancient, since the present outlet to the eastward 
seems of considerable antiquity, and long pre-glacial. Noting 
the direction of the valley towards Milnagek Lake, the question 
arises whether the latter also may not have been included in this 
ancient valley. But all evidence tends to show that such was 
not the case, and that the watershed between these waters and 
Milnagek is extremely ancient. Indeed, so far as our present river 
systems are concerned, this central plateau is the primitive or 
original watershed of the province. From it the rivers have, 
from the earliest times, radiated southeasterly and northwesterly, 
but, in this region, they have never crossed it. As shown in 
earlier notes (Nos. 39, 55, 56), it is an irregular, often very 
sharply bounded, plateau, 1700 or 1800 to 1900 feet above the 
sea, and locally higher, on which occur many shallow ponds, and 
numerous rivulets, the interlocked sources of the rivers flowing 
in both directions. 
Two streams enter the Crooked Deadwater on the northwest 
side at the Jaws, one on each side of the horseback. The larger 
of these rises far off to the northwest, even to within two miles 
of the Gulquac. I was not able to trace it myself (the sketch 
on the map being given me by Mr. Braithwaite), but either it or 
the smaller stream near it appears to occupy in part a pronounced 
break or valley extending off to the westward, which seems to 
represent the westerly continuation of the valley emptying these 
waters easterly into Big Lake. 
