284 



ward to Little Harbor, the water findinu: an outlet along 

 the line ot" the railroad into Cohasset Harbor, the part of the 

 Lower Plain north ot" the railroad, and separated by the 

 valleys of Town Brook and Fresh River from the higher 

 southern part of the plain, was formed. It is most perfectly 

 developed, with a normal elevation of from 40 to 45 feet, in 

 the area south of Broad Cove and across the southern end 

 of the harbor, this eastern extension almost repeating the 

 barrier along East Street Avhich has diverted the drainage of 

 the Weir River Basin. Its most interesting development, 

 however, is west of the drundins, in the Hockley District, 

 which embraces the triangular area between Fort Hill Street, 

 Hockley Lane, and Weymouth Back River. The ty[)ical 

 plain is almost wholly wanting here ; but the deposit is of a 

 distinctly tumultuous character, gracefully undulating, with 

 rounded knolls, short ridges or kames, and kettles. It is to 

 the smoothly hummocky character of this district that it owes its 

 name. The highest part is a ridge from 60 to 80 feet high 

 which should, perhaps, be referred to the Glad Tidings Plain. 

 Several groups of eskers maybe referred to the Lower Plain, 

 although only one of these is actually included within its area. 

 This is the beautiful double esker at the north end of Great 

 Hill. As shown on the map, these ridges trend east- west, the 

 southern one just touching the extreme north end of Great Hill, 

 from the slope of which the view (Fig. 24) is taken, the 

 large drumlin which looms up in the distance being Baker's 

 Hill. The ridges are approximately straight, parallel, of nearly 

 equal height — from 30 to 50 feet — and so near together as 

 to make it reasonable to suppose that they are the product of 

 one glacial stream, as explained on page 279. The 

 northern ridge is about 1,800 feet long, extending nearly (500 

 feet east of New Bridge Street ; while the southern ridge begins 

 at the street ; and about 900 feet west of the street and 350 

 feet from their western terminations they are connected by 

 a cross ridge, the beautifid, elongated l)asin between this and 



