Keywords: Baldeagle3.JPG Pyrite in the Ordovician Bald Eagle Formation from the Skytop Roadcut where I-99 crosses Bald Eagle Mountain Centre County Pennsylvania Scale bar is 1 cm 2008-6-12 Own <br />Transferred from http //en wikipedia org en wikipedia Jstuby at http //en wikipedia org en wikipedia en wikipedia Jstuby Original upload log page en wikipedia Baldeagle3 JPG 2008-06-12 14 23 Jstuby 1060×1196 563938 bytes <nowiki>Pyrite in the Ordovician Bald Eagle Formation from the Skytop Roadcut where I-99 crosses Bald Eagle Mountain Centre County Pennsylvania Scale bar is 1 cm </nowiki> Ordovician geology Geologic formations Sandstone Geology of Pennsylvania Stratigraphy |