SCIENTIFIC SURVEY. g^o 



^ The water of Moosehead finds an outlet through the Kennebec 

 river ; thus flowing out in nearly the same direction and at almost 

 the same place as it entered. 



The other features of the lake have been already fully described 

 in the able report of last year of Mr. J. 0. Houghton, who visited 

 it late in the summer of 1861, 



I regret, sir, that the work of describing in a familiar way, the 

 physical geography, botany and agricultural capabilities of this 

 vast district, did not fall into abler hands than mine. 



Our journey was finished by our return to Greenville upon 

 Saturday, June Ith, having accomplished in our birch canoes the 

 entire distance of four hundred and twenty-two miles, in twenty- 

 three days. 



I am, sir, most respectfully, 



Your obedient servant, 



GEORGE L. GOODALE. 

 Portland, Oct. 31st, 1862. 



Geology of the Route. 



The rock on the west branch of the Penobscot, from the head of 

 Chesuncook lake to the north-east carry into Moosehead lake, 

 probably belongs to the Oriskany group. At the north end of 

 Chesuncook, the slates dip from 10° to 15° north-westerly, while 

 the cleavage planes arc nearly perpendicular. We suppose that 

 the high dips of the strata over the whole of this lake given last 

 year by Mr. Houghton, are those of cleavage ; he was certainly 

 in error respecting the dip at the head of the lake. In these ledges 

 at the head of the lake are a few fossils, which are largely changed 

 into nodular masses of pyrites. The organic structure is very 

 often apparent in them. At Pine Stream falls the dip of the strata 

 seem to be abdut 25° north-westerly. The rock is a clay slate, with 

 cleavage planes dipping 74° N. 20° W. 



A few drift strise appear at Pine Stream falls, running due south, 

 and cross the river transversely. But near the mouth of Rag Muff 

 stream are true glacier striae, running down the river N. 15° W., 

 the stoss side being on the south. The cleavage planes (and per- 

 haps the strata also) dip 65° N. W. at Rag Muff. Between Pine 

 stream and Rag Muff, rock exposures are common, all of a clay 

 slate, with about the same position of the cleavage planes. Be- 

 tween Rag Muff and the north-east carry into Moosehead or 



