File:Gray shale & bentonites (Benton Shale, Upper Cretaceous; Red Rock Canyon Open Space, Colorado Springs, Colorado, USA) 5.jpg
![File:Gray shale & bentonites (Benton Shale, Upper Cretaceous; Red Rock Canyon Open Space, Colorado Springs, Colorado, USA) 5.jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/8/89/Gray_shale_%26_bentonites_%28Benton_Shale%2C_Upper_Cretaceous%3B_Red_Rock_Canyon_Open_Space%2C_Colorado_Springs%2C_Colorado%2C_USA%29_5.jpg/800px-Gray_shale_%26_bentonites_%28Benton_Shale%2C_Upper_Cretaceous%3B_Red_Rock_Canyon_Open_Space%2C_Colorado_Springs%2C_Colorado%2C_USA%29_5.jpg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 02:17, 29 December 2019 | ![]() | 3,008 × 2,000 (4.47 MB) | Ser Amantio di Nicolao | User created page with UploadWizard |
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