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Lynchberg tunnel, Magdalena District, Socorro Co., New Mexico, USA

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Latitude & Longitude (WGS84): 34° 4' 6'' North , 107° 11' 39'' West
Latitude & Longitude (decimal): 34.06861,-107.19427
Köppen climate type:BSk : Cold semi-arid (steppe) climate

Started 1910 by American Zinc, Lead, and Smelting Co.; taken over by C.T. Brown in 1912 and Empire Zinc Co. in 1915 or 1916.

1300ft tunnel running east to 3000ft north-south-trending fault zone. Irregular stoping and drifting present along fault zone.

Empire Zinc operated Linchburg until 1961; it was acquired by Hydro Resources Inc. of Albuquerque, NM and produced intermittently from 1973 to 1977 or 1981. Approximately 10,000t of ore was milled at a site in Paterson Canyon. The mine was used for explosives testing by the US Army Corps of Engineers until 1993.

Remaining ore reserves are unknown, but the mine does not appear to have a ventilation raise and is full of gas and mold. Reestablishment of ventilation is necessary if production is to be resumed, as is expansion of the main haulage tunnel.

Mineral List

20 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 Macrostrat.org

252.17 - 541 Ma

ID: 2908666
Paleozoic rocks, undivided

Age: Paleozoic (252.17 - 541 Ma)

Lithology: Major:{sedimentary}

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 Macrostrat.org, used under Creative Commons Attribution 4.0 License

This page contains all mineral locality references listed on mindat.org. 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 mindat.org 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.


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Economic Geology (1961): 56(4) (1 June 1961): 695-722.
Loughlin, G.F. and Koschmann, A.H. (1942), Geology and ore deposits of the Magdalena mining district, New Mexico. USGS Professional Paper 200.

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