div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=usgs-calicata-dump-escornbrera-underground-workings-trabajos-subterrneos-tu-tuhtmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: USGSCalicata Dump Escornbrera Underground workings Trabajos subterráneos tu tu tu tu Spring 50 200 100 20 600 Feet Pies 100 Meters Metros Contour 20 feetdatum assumed base de las loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader035vdocumentsnetreader035viewer2022071414610cdcde4068e3337a2a4b84html5thumbnails1jpg width=140 height=200 divdiv
