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MOUNT KEARSARGE' or Pequawket is a mountain of medium height in the southern part of the White mountains of New Hampshire. It is situated a few miles north of North Conway, partly in the town of Bartlett and partly in the town of Chatham. It rises 3,260 feet above the sea, and 2,700 2 feet above the neighboring valley of the Saco river; and includes, as a spur on its southwestern slope, Mount Bartlett. The latter rises 2,630 feet above the sea. These two mountains cannot be separated in a geological study of this mountain mass. The rock making up the base of these mountains is what Hitchcock has called the Conway granite. On the south slope of Kearsarge this granite is found up to the level of T,300 feet; on the southwest and west slopes of Bartlett, up to I,ooo or I,Ioo feet; on the northwest slope of Kearsarge, up to 1,800 feet; and on the northeast slope of Kearsarge, up to the 2,500 foot level.3 This granite also makes up the base of Moat mountain, on the opposite side of the Saco river, and is found on the north slope of this mountain in the course of Cedar brook up to the 900 foot level. It is found, in addition, over a broad area around, and is quarried in a number of places. The large quarry in the side of the mountain at Redstone, three miles southeast of North Conway, is in this granite. The Conway granite4 is reddish in color, is coarse in crystalline texture, is without foliation or granulation, and is very massive, being cut by few joints either vertically or horizontally. In the quarry at Redstone the distance between the joints is very noticeable. The first joint from the surface, when I was there, ' Geological section of this mountain is represented on the second sheet of the geological map of New Hampshire in the atlas accompanying Geology of New Hampshire. ' Taken from the topographic map of the U. S. Geol. Surv. 3Determined by means of an aneroid. 4Described in Geology of New Hampshire, Vol. II, p. 142. 403

Pre-Cambrian. 'Northbridge gneiss.. SEDIMENTARY ROCKS: Cambrian. Grafton qnartzite. Albion schist member. Marlboro formation, including green schists, amphibolite, mica schist, and, as a subordinate member, the Smithfield limestone, which changes into tremolite schist, steatite, and serpentine.

GEOLOGY OF MONADNOCK MOUNTAIN, NEW HAMPSHIRE.' CONTENTS. A. DESCRIPTION OF MONADNOCK. B. ROCKS OF MONADNOCK AREA. I. Andalusite schist. 2. Fibrolite schist. 3. Quartzose mica schist. 4. Rusty, graphitic mica schist. 5. Granite. a) Occurrence in lobes. b) Inclusions in. c) Alternation of, with schist along the border. d) Pegmatite in. e) Relation of, to schist. C. AGE OF THESE ROCKS. D. ATTITUDE OF THE SCHIST IN THE MOUNTAIN. E. JOINTING OF THE SCHIST. F. Two PERIODS OF METAMORPHISM INDICATED IN THE SCHIST. G. REASON FOR THE SURVIVAL OF THIS MOUNTAIN. MONADNOCK, situated in southern New Hampshire, is of special interest to geologists because it was selected by Professor Davis as atype of the isolated, residuary peaks that may be found rising above a base-leveled land surface. This mountain rises 3,1662 feet above mean sea-level and about 2,000 feet above the surrounding peneplain, the plateau of southern New England. At the first glance the mountain may appear, from its representation on the Topographic Map, as a regular, single peak; but, on 'Monadlock is considered in the Geology of New Hampshire, Vol. II, pp. 24, 5o3, 639. Tlis area, with a section through the mountain, is represented on the fourth sheet of thegeological map in the atlas accompanying the same. 2 From he Topographic Map of the U. S. Geological Survey. Vol. XII, No.. i

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