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Teeter Quarry (Teeters Quarry; Valley Quarry; John S. Teeter and Sons Co. Quarry; Gettysburg Quarry; H.T. Campbell's Teeter's Quarry), Gettysburg, Adams Co., Pennsylvania, USA

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Latitude & Longitude (WGS84): 39° 45' North , 77° 15' West
Latitude & Longitude (decimal): 39.75000,-77.25000
Köppen climate type:Cfa : Humid subtropical climate

Mesozoic hornfels quarry adjacent to York Haven Diabase. Originally H.T. Campbell's Teeter's Quarry, now owned and operated by Valley Quarries Inc. as the Gettysburg Quarry. Located along Rt. 97, about 0.5 mile west of Rt. 15. Aprox. 92.5 acre permit.

The correct name for this quarry, as found in many state records, was the John S. Teeter and Sons Co. Quarry. Often this was shortened to just the Teeter Quarry. An article in the Friends of Mineralogy Pennsylvania Chapter Newsletter v31, n3, fall of 2003. On page 6 an article written by John D Teeter, son of John S Teeter calls it the Teeter Quarry.

Mineral List

37 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

201.3 - 252.17 Ma

ID: 2881470
Gettysburg Formation

Age: Triassic (201.3 - 252.17 Ma)

Stratigraphic Name: Gettysburg Formation

Description: Reddish-brown to maroon, silty mudstone and shale containing thin red sandstone interbeds; several thin beds of impure limestone.

Lithology: Major:{siltstone mudstone,shale}, Minor:{sandstone}, Incidental:{limestone}

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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Hoff, Donald T. (1978) Campbell's quarry, a complex mineral locality in Gettysburg, Pennsylvania, Rocks and Minerals, v. 53, no.6, p. 247 - 253.
Smith, II Robert C. (1978) Djurelite chapter in The Mineralogy of Pennsylvania, Special Publication No. 1, Friends of Mineralogy, p. 110 - 114.
Smith, II R. C. Berkheiser, Jr., S. W. and D. T. Hoff (1988) Locations and analyses of selected Early Mesozoic copper occurrences in Pennsylvania, U.S. Geological Survey Bulletin 1776, p. 320 - 332.
Teeter, John and D. T. Hoff (2003) A history and mineralogy of the Valley Quarry, Gettysburg, Adams County, Pennsylvania (A compilation of information from two sources), Pennsylvania Chapter of the Friends of Mineralogy Newsletter: 31(3): 6-11.
Jones & Eisenberger (2006) The Microminerals of Valley Quarry. Rocks & Minerals: 81: 229-234.
Smith, II, R. C. and J. H. Barnes (2008) Mineralogy, petrology, and mineralization of the Valley Quarries, Inc. Gettysburg Quarry, formerly the H. T. Campbell Quarry, Adams County, Pennsylvania, Field Conference of Pennsylvania Geologists: 73: 79-81.
Geyer, Smith and Barnes, Mineral Collecting in Pennsylvania: 28-30.

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