I08 ALFRED IV. G. WILSON 



divided into three parts: the Trenton-Desoronto section, trend- 

 ing a little north of east; the Desoronto-Picton section, trending 

 to the west of south ; and the Picton-Kingston section, trending 

 nearly northeast. 



The upper section is comparatively shallow ; for the most part 

 the shores are rocky; and no characteristic cuspate forelands 

 have been noted along them. 



The middle section, sometimes known as the Nine Mile 

 Reach, has much deeper water, and the valley sides are steep, 

 often inaccessible cliffs of Trenton limestone. The maximum 

 relief is about 185 feet. Much of the shore is rocky, but along 

 the east side there are, in places, small amounts of modified drift 

 lying between the water's edge and the front of the adjacent 

 escarpment. In one place, a short distance below Bogart's dock, 

 shore drift derived from this material has formed a small fore- 

 land of fine sand which resembles the V terrace with the rimming 

 bars which Gilbert describes as occurring on the shores of Lake 

 Bonneville. On the west side of Picton Bay there are also two 

 small spurs of shore drift which seem to be associated with talus 

 cones from the face of the cliff. 



Along the third section of the bay there are four excellent 

 examples of the cuspate foreland and one long flying spit. Some 

 of these cuspate forelands have a remarkably close resemblance 

 to the V terraces and V bars of Lake Bonneville. Parts of the 

 shores of this section of the bay are also rocky, but the amount 

 of drift, both till and stratified material, is greater than else- 

 where. Off the west end of Amherst Island the water has its 

 maximum depth of 230 feet. The valley reaches its maximum 

 relief of 284 feet near Glenora. The south shore is bordered by 

 the steep escarpment of a cuesta v/hich rises about 200 feet 

 above water level near Glenora. The height gradually decreases 

 eastward, and in Amherst Island it is only about 50 feet. The 

 north shore rises gently inland. On the south shore rock 

 exposures are numerous; on the north shore glacial drift fre- 

 quently occurs, bed-rock less often. Of the four cuspate fore- 

 lands to be described, three occur on the south shore; the flying 

 spit is located at the extreme eastern end of Amherst Island, 

 also on the south side of the bay. 



