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Montgomery County Quarry, Mauldin Mountain Quarries, Mauldin Mt., Montgomery Co., Arkansas, USA

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Latitude & Longitude (WGS84): 34° 35' 48'' North , 93° 39' 11'' West
Latitude & Longitude (decimal): 34.59675,-93.65322
Köppen climate type:Cfa : Humid subtropical climate

A fill & road metal quarry operated by the county government. Located on the South face of Mauldin Mountain, 3½ miles NW of Mt Ida. Rock is fractured Bigfork Chert. Workings are open cuts on the mountainside. Produced world class wavellite specimens in the 1970's.

Mineral List

5 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

252.17 - 541 Ma

ID: 3187973
Paleozoic sedimentary rocks

Age: Paleozoic (252.17 - 541 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Middle Ordovician
458.4 - 470 Ma

ID: 2860715
Womble Shale (Middle Ordovician)

Age: Middle Ordovician (458.4 - 470 Ma)

Stratigraphic Name: Womble Shale

Comments: 80% black shale with thin beds of limestone and sandstone. Approximatly 2500 ft. maximum thickness.

Lithology: Major:{black shale}, Minor:{limestone,sandstone}

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.


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Smith (1985).

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