. The geology of New Hampshire : a report comprising the results of explorations ordered by the legislature. one foot in diameter, is occasionallyfound, and appears to belong to kames which have been nearly buriedbeneath the fine alluvium. Ossipee river, the outlet of this lake, flows over till at Effingham falls,and along its last mile before entering Maine. In the intervening threemiles it is bordered by low modified drift, which extends to Swasey pondin Freedom, and forms an extensive tamarack swamp in the north-eastcorner of Effingham. On the west and south sides of Ossipee lake the modifi
. The geology of New Hampshire : a report comprising the results of explorations ordered by the legislature. one foot in diameter, is occasionallyfound, and appears to belong to kames which have been nearly buriedbeneath the fine alluvium. Ossipee river, the outlet of this lake, flows over till at Effingham falls,and along its last mile before entering Maine. In the intervening threemiles it is bordered by low modified drift, which extends to Swasey pondin Freedom, and forms an extensive tamarack swamp in the north-eastcorner of Effingham. On the west and south sides of Ossipee lake the modified drift is onehalf mile to a mile and a half wide. Its highest portion is a delta-plain onthe north side of Lovells river, 40 feet above the lake. Elsewhere it islow, being swampy in many places, and rises only 15 to 25 feet above thelake, towards which it slopes. These nearly level areas are bounded by hills and mountains, whichrise steeply from the edge of the plains. The supply of modified driftwas very abundant here, and fills three fourths of the natural lake-basinwhich is thus enclosed. MODIFIED DRIFT ALONG PINE RIVER. I47 A conspicuous dune, blown 125 feet above the low plains, occurs twomiles south-east from Ossipee lake on the west foot-slope of Green moun-tain. A track of sancl-drifts, now grassed over, reaches up to this fromthe north-west; and an old pine stump, standing where it originallygrew, shows that since the clearing of the country a portion of the duneseven feet in depth has been swept from beneath it by the winds, beingcarried to the south-east and somewhat higher up the hillside. Kamcs along Pine River. South-east from Ossipee lake a continuous belt of modified drift ex-tends along the entire course of Pine river, forms the water-shed betweenPine River pond and Balch pond, and thence continues eastward alongLittle Ossipee river in Maine. These ponds are about 20 and 40 feetrespectively below the lowest point of the water-shed, which is about 55
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