Original file (1,400 × 883 pixels, file size: 839 KB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 23:05, 24 August 2008 |
![]() | 1,400 × 883 (839 KB) | Leaflet | {{Information |Description={{en|1=Arikaree sandstone on Brule clay, in Pawnee Buttes, strong unconformity due to erosion; typical beds of concretions in Arikaree formation. Weld County, Colorado (Circa 1900).}} |Source=U.S. Geological Survey Professional |
Original file (1,400 × 883 pixels, file size: 839 KB, MIME type: image/jpeg)
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 23:05, 24 August 2008 |
![]() | 1,400 × 883 (839 KB) | Leaflet | {{Information |Description={{en|1=Arikaree sandstone on Brule clay, in Pawnee Buttes, strong unconformity due to erosion; typical beds of concretions in Arikaree formation. Weld County, Colorado (Circa 1900).}} |Source=U.S. Geological Survey Professional |