div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentindex-to-maps-surficial-geology-1991a2018-northern-between-1991-and-2018-thathtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: Index to Maps Surficial Geology 1991–2018 Northern sheet · between 1991 and 2018 that pertain to surficial geology industrial minerals and aggregate resources Maps published loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsusreader033viewer20220416065e347b53bb095b2d352a02efhtml5thumbnails1jpg width=140 height=200 divdiv