div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentpp-223-plate-5-30-usgs-colorado-am-assoc-petroleum-geologists-bull-vol-17htmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: pp 223 plate 5 30 - USGS · Colorado: Am Assoc Petroleum Geologists Bull vol 17 no 4 pp 384 386 1933 PERSPECTIVE ENVER 12 11 Breckenridge 15 16 18 Canon City 1060 1050 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader035fdocumentsinreader035viewer20220630025f2bd078541a467adb6dc124html5thumbnails1jpg width=140 height=200 divdiv