TOPOGRAPHY OF COOS COUNTY. 221 



The Water Basins. 



The northern portion of the water basin of the Connecticutt, he Magal- 

 loway, the Androscoggin, and the Saco, is embraced in this section. 

 North of latitude 45 ° it embraces nearly the whole of that of the Con- 

 necticut. West of the Connecticut river, and north of latitude 45°, there 

 are three nearly parallel ridges. The first, going west, is somewhat irreg- 

 ular, and is cut off where Perry's stream turns east and flows into the 

 Connecticut. But two, — one between Perry's and Indian streams, and 

 the other between Indian and Hall's streams, — are more uniform, and 

 they have a mean height of about six hundred feet above the streams. 

 South of latitude 45°, and east of the Connecticut, the ridges are every- 

 where very irregular. North hill, in Clarksville, rises 1,971 feet where 

 the road crosses. South hill, in Stewartstown, is 2,000 feet, ascending to 

 Jackson. In Colebrook and below, the high ridges branching from the 

 water-shed have generally a westerly trend. South of Sims stream the 

 ridge extends nearly to the Connecticut, as, also, the one in Stratford, 

 south of Lyman brook. Below North Stratford the ridges run more to 

 the south. In Northumberland, south of the Upper Ammonoosuc, they 

 again run more nearly west, and continue thus until we reach Dalton, 

 where the principal ridge runs north and south. 



Seven miles south of Crown monument the water-shed touches the 

 boundary line of Maine. The portion of the water basin of the Magallo- 

 way north of this is a level tract of country, penetrated by spurs from 

 the boundary line towards Quebec province. South of the point men- 

 tioned above, the water basin of the Magalloway occupies a large tract of 

 country in New Hampshire. It is everywhere broken into irregular 

 mountain ridges, but these have generally a southern trend until we reach 

 the Swift Diamond in Dartmouth College grant. South of this stream 

 there is a high, continuous ridge from Dixville notch to the Magollaway : 

 then there is a high ridge that runs south, parallel with the stream last 

 mentioned. The triangular area, embraced by the Swift Diamond, Clear 

 stream, and the Magalloway and Androscoggin, is a succession of hills 

 and mountain ridges. The high point north of Dixville notch forms the 

 apex of the triangle ; and Mt. Dustan is in the north-east angle. South 



