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North Moat Mountain localities, Bartlett, Carroll Co., New Hampshire, USA

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Latitude & Longitude (WGS84): 44° 2' 35'' North , 71° 12' 53'' West
Latitude & Longitude (decimal): 44.04306,-71.21472
Köppen climate type:Dfb : Warm-summer humid continental climate

Granite pegmatite associated with the Conway granite. (Note: This is not the same locality as the Red Ridge locality, which is also sometimes called the "North Moat Mountain Locality.")

There are many localities on North Moat Mountain, notably Peter's Pocket and the Pine Knoll. Miarolitic cavities are scattered throughout the south and east facing exposures usually around the 1050' to 1150' elevations. Peter's pocket is officially closed to collecting and has been filled in by the U.S. Forest Service and anyone found at the site will be fined.

North Moat Mountain is a mountain summit; coordinates are for the mountain.

Mineral List

7 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on

Middle Jurassic
163.5 - 174.1 Ma

ID: 2817318
Moat Volcanics

Age: Middle Jurassic (163.5 - 174.1 Ma)

Stratigraphic Name: Moat Volcanics

Description: Bedded and ignimbritic tuffs, flows, and breccias; also porphyritic rhyolite and minor trachyte.

Comments: Part of the White Mountain igneous province of McHone and Butler (1984) - Overall part of the White Mountain Plutonic-Volcanic Suite - Includes Cretaceous alkalic syenite to granitic to gabbroic plutons, minor volcanic rocks, and lamprophyre dikes of the New England-Quebec igneous province of McHone and Butler (1984); also includes Jurassic granite and syenite and less abundant quartz syenite, diorite, gabbro, nepheline syenite, and volcanic rocks of the White Mountain igneous province of McHone and Butler (1984). White Mountain Plutonic-Volcanic Suite, ALL ages per NH023. lower part of Moat Volcanics = 173+/-2 Rb/Sr. upper part of Moat Volcanics = 168+/-1 Rb/Sr. trachyte of Moat Volcanics = 169+/-4 and 162+/-4 K/Ar.

Lithology: Major:{volcanic,rhyolite}, Minor:{trachyte}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by, used under Creative Commons Attribution 4.0 License

This page contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


John Betts (private correspondence)

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