56 NEW YORK STATE MUSEUM 



good bars lie at 700 to 730 feet. These features are indicated on 

 the map, between which the shore Hne has been interpolated, being 

 mostly in forest and not examined. Puture study will discover 

 many good features. It should be emphasized that this shore line 

 lies with identity of character and altitude on both flanks of the 

 Covey promontory, in both the Champlain and Ontario basins. 



The Franklin Center-Covey Hill post office beacJies. This strong 

 shore line, 215 feet beneath the marine summit, was formerly 

 regarded as the marine summit (81, 82). It carries a splendid set 

 of bars at all points about the Covey salient in Canada. Lying low 

 on the slopes it probably represents an accumulation of coarse 

 detritus by the rinsing down of 200 feet on the higher slopes, and 

 perhaps some kame-moraine at this level. Around the north side 

 of Covey hill the wave work had been mainly erosional from the 

 summit level down to the Franklin Center level. At this lower 

 plane the off-shore depth and other relations were such that the 

 work of the waves became chiefly constructional. The exceptional 

 development of summit bars in the Cannon Corners district was due, 

 as already stated, to the abundance of coarse delta stuff from the 

 inferior downdrainage of Iroquois. 



The 215 feet interval between the two strong shore lines so 

 prominent on the map is rather misleading. Intermediate features 

 exist, and the scanty representation is due more to lack of observa- 

 tion than to actual absence of beach phenomena. Attention has 

 been chiefly directed to the two series of bars. 



The unusual development of the Franklin Center bar series 

 might be regarded as the record of an episode of much slower land 

 uplift. But as the shore is not clearly recognized southward beyond 

 the area mapped in plate 5 or southwestward beyond Lawrence- 

 ville, on the Moira quadrangle, it must be explained as due to 

 exceptional local conditions. The possibility is recognized, how- 

 ever, that in the progressive wave uplift of the land this district 

 might have risen at first with relative rapidity, for the 215 feet, 

 and then more slowly. 



The location and character of this shore is sufficiently shown in 

 the map. Below the upper bars, 525 feet, the beach phenomena 

 are abundant at all declining' levels where conditions were favor- 

 able. A fair set of bars lie on the Chateaugay sheet, and a 

 remarkable series on the north edge of the Mooers sheet. The 

 shore also appears along English river, and west of West Chazy; 

 but southward on the Dannemora sheet its place is occupied only 

 by smooth or rolling tracts of sandy soils, with no bars. 



