. The geology of New Hampshire : a report comprising the results of explorations ordered by the legislature. lanta-tion were the only gravel deposits resembling kames that were seen in the vicinity ofRangeley lake. On the lower part of the Kennebago river there are some well markedkames; and their absence was also noted on the river till we get about ten miles northof Kennebago lake, where there are some well marked ridges, but these do not extendmore than two miles. On Cupsuptic river there is an almost entire absence of kames,as in the other regions we traversed ; but on the lower part of th
. The geology of New Hampshire : a report comprising the results of explorations ordered by the legislature. lanta-tion were the only gravel deposits resembling kames that were seen in the vicinity ofRangeley lake. On the lower part of the Kennebago river there are some well markedkames; and their absence was also noted on the river till we get about ten miles northof Kennebago lake, where there are some well marked ridges, but these do not extendmore than two miles. On Cupsuptic river there is an almost entire absence of kames,as in the other regions we traversed ; but on the lower part of the Cupsuptic, for six oreight miles, there are sand and gravel plains extending some distance from the sand plains are characteristic, also, of the Magalloway; but, so far as our ob-servation goes, they are wanting on the Kennebago. Eruptive Rocks. Granite. On the north-west branch of the Kennebago river, near its source, thereis a band of granite probably two miles wide. It is a typical variety, consisting ofquartz, feldspar, and mica in more nearly equal proportions than we often iind Fig. 64.—Bald IVIountaix. a, the lake; b, schist on the border of the lake ; c, granite; d, granite,—a narrow band near the top of themountain ; e, schist on the summit of the mountain. There are, however, two kinds of feldspar, the triclinic being more abundant than itis commonly found in the coarser varieties of the New England granites. On theCupsuptic river, in No. 4, R. 4, we find a similar kind of granite, which extends northand south nearly through the entire range. South-west, in No. 5, R. i and 2, thereVOL. III. 47 266 APPENDIX TO PARTS I AND II. are large areas of granite; but its greatest development we find on Observatory andAziscohos mountains, and there is quite an extensive outcrop in No. 4, R. i, on thesouth-west side of a hill north-west of the upper dam. The top of Bald mountain,between Rangeley and Moosetocmaguntic lakes, except its very summit, is compos
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