![File:Brallier shale, Huntingdon County, Pennsylvania (Butc1163).jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/4/46/Brallier_shale%2C_Huntingdon_County%2C_Pennsylvania_%28Butc1163%29.jpg/800px-Brallier_shale%2C_Huntingdon_County%2C_Pennsylvania_%28Butc1163%29.jpg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 20:54, 1 July 2022 | ![]() | 4,373 × 3,177 (9.4 MB) | Jstuby | Uploaded a work by USGS from [https://library.usgs.gov/photo/#/item/51dc2510e4b0f81004b78f60 Brallier shale, these thick beds are thinly laminated and break down into thin chips on weathering. Huntingdon County, Pennsylvania. 1924], USGS Denver Library Photographic Collection with UploadWizard |
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