ANDROSGOGGIJSr LAKES-POETLAND SYSTEM. 233^ 



city, and spread it as beach gravels over the lower slopes of the hills, and 

 often upon the fossiliferous marine clays. In consequence of the landslips 

 and the overlap of the beach gravels, Portland is a difficult locality for 

 investigating the relations of the glacial gravels to the fossiliferous marine 

 clays. 



South of Portland Harbor the connections of this system are somewhat 

 obscure. In Cape Elizabeth, near the Boston and Maine Railroad, is a sand- 

 and-gravel plain, not far southwest of Portland, and there is another pretty 

 large plain near Oak Hill station, Scarboro. It is probable that these are 

 the connections of this system rather than the more eastern line of gravels 

 toward Two Lights. Whether any of the sand beaches toward Old Orchard 

 are part of this system is uncertain. 



The length of the system, from Lake Mooselookmeguntic to Scarboro, 

 is 100 miles. 



KENNEBAGO KAMES. 



These are reported by Mr. Huntington, of the New Hampshire Greo- 

 logical Survey, as being found in the valley of the Kennebago Stream, 

 about 10 miles north of Lake Mooselookmeguntic. I explored this river for 

 2 miles north of the lake, and found an alluvial plain, which possibly is a 

 frontal plain. The kames referred to above are in the proper position to be 

 a branch of the long Portland system, but more probably are a local sys- 

 tem of late date, when the ice had retreated up the valley for several miles 

 above the lake. 



LOCKES MILLS BRANCH. 



The broad alluvial intervale of Bethel extends nearly to South Bethel. 

 At the eastern edge of the alluvial plain begins a series of reticulated ridges 

 inclosing kettleholes, which extends eastward past Lockes Mills in Green- 

 wood. Approaching the top of the divide between Androscoggin and 

 Little Androscoggin waters, the gravel series becomes finer in comjiosition 

 and expands into a small sand plain at an elevation of about 75 feet above 

 the Bethel intervale. From the top of the divide eastward to Bryants 

 Pond there is but little alluvium. A glacial stream from this direction 

 joined the main system at Bryants Pond and left a plain of gravel extend- 

 ing about one-fourth of a mile west from the main osar-plain. From that 

 point to the top of the divide not far east of Lockes Mills I have not been 



