DATA AFFECTING SUBMERGENCE THEORY 237 



124. Essex, 1% miles northwest of East Bouquet Mountain, bars from 500 to 

 550. 



127. Burlington, Vermont, 7 miles east and li/^ miles northwest of Williston, 



gravel bar, 610. 



128. Burlington, 10 miles east, on northeast corner of Burlington quadrangle, 



east side of Saxon Hill, cliff and plain, 646. 



129. Port Kent, 2 miles southwest, heavy gravel bars on northwest slope of 



Trembleau Mountain, 450-585 (Woodworth's number 43) ; 8 miles west, 

 at Harkness, bars both sides of Ausable Valley at 500-580; 4 miles 

 southwest and 1 mile southeast of Keeseville, bars on north slope of 

 Prospect Hill at 585. 



131. Peru, 3 miles west, glacial channels at 700 ; bars at 706 down to 500. 



132. Schuyler Falls, 2 miles northwest and 7 miles southwest of Plattsburg, 



heavy gravel bars, 540-630 ; cliff at 630. 



133. Morrisonville, 3 miles southwest, glacial channels down to or below 700. 



134. Morrisonville, 2 miles southwest, bars, 635 down to 560. 



136. West Beekmantown, 1^2 miles south by west and 7 miles northwest of 

 Plattsburg, on north edge of Dannemora quadrangle, heavy bars, 645 

 down to 560. 



138. West Chazy, 3 miles southwest, bars, 680 down to 600. 



139. West Chazy, 3 miles northwest, Cobblestone Hill, heavy bars, 660 down 



to 580 (Woodworth's number 50). 



140. Altona, bars about 700 ; terraces, 720. 



143. Cannon Corners, 8 miles west of Mooers, heavy bars extending for 3 miles 

 north and south, 695 to 735; glacial channels, down to 720; heavy 

 cobble deltas, 750 down to 700. (Woodworth's number 53 refers to 

 bars 2% miles north of Cannon Corners, in the extreme corner of 

 Mooers quadrangle, at 730 to 710.) 



145. Covey Hill Post-office, one-half mile west, on slope of hill, cliffs and ter- 

 races, inconspicuous, 640 and 725. 



The series of heavy bars north and south of the international boundary, 

 well known as the Covey Hill beaches, are indicated on the diagram but 

 not numbered. They range from 525 feet down to 300 and lower, and 

 represent an inferior stage of the sealevel waters. From Covey Hill Post- 

 office they extend westward about the slope, reentering New York north 

 of Chateaugay, and have been mapped through the Saint Lawrence into 

 the Ontario Valley. They are the beaches of the "Gilberi: Gulf." 



The features given in the chart are only part of those which mark the 

 highest level of the valley-wide standing water. The inferior phenomena 

 are profuse and commonly obtrusive, and while of value as showing 

 effective water action they are not important in the present study. More 

 data could be added for the summit plane, but these are thought sufficient 

 to fairly show the present attitude and gradient of the uplifted marine 

 planes. 



XVII — Bull, Geol. Soc. Am., Vor., 25, 1913 



