6o 



AN ABANDONED MARINE SAND-BAR 



Before 1 continue my paper 1 should describe my drumlin- 

 ■haped sand-luink and the country immediately surrounding 



-Coldbroek St^xUon 



'^""Uc^ Scate/in^Sooft 

 Abandoned Marine Sand-bar in CoTnwallis VQ|ley,KI *^ 



The Cornwallis Valley is flanked on either side by hills, 

 namely, the North and South Mountains, and consists of 

 numerous banks of sand and gravel. Very few of these rise 

 high enough above the general elevation of the country to 

 become conspicuous objects of topography, the whole country 

 presenting to view a monotonous sandy plain dotted here and 

 there with small groves of pine trees and poplars. The aver- 

 age elevation of the country is about 70 feet above sea level. 



About half a mile north of Coldbrook station and a 

 mile and a half from the foot of the South Mountain, lies 

 the sand-bar now under discussion. The road from Coldbrook 

 station to Lakeville passes near it on the cast side. The 

 mound is approximately 900 feet long, 300 feet wide, and 

 50 feet above the surrounding plain. It is so thickly covered 

 with pine trees that a photograph fails to show its contour. 

 It is composed of sand with some gravel, and the direction 

 of its longer axis is N. 10° W. — S. 10° E., true bearings. 

 The north end has a gentle slope, suggesting an ice movement 

 from the north. The south end is much steeper. These 

 facts first led me to think it was a drumlin, but there is 

 stronger evidence against this idea. 



