div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentpp-484-plate-1-usgs-780-01-rg-0b-shep-professional-paper-484-plate-1-potomac-rdstownhtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: PP 484 plate 1 - USGS780 01 rg 0b Shep PROFESSIONAL PAPER 484 PLATE 1 Potomac rdstown s Har ers VALLEY Doh SOS Oce 0b Oce 0b Cce Carbonate rocks of Middle and Late Cambrian age Thin-bedded loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader034fdocumentsecreader034viewer20220430215f3d285df4a499799245e668html5thumbnails1jpg width=140 height=200 divdiv