Kiruna Iron Ore MineMining Technology Mining News and
With an ore body 4km long 80m thick and reaching a depth of 2km LKAB s Kiruna is the world s largest most modern underground iron ore mine. Since mining began at the site over 100 years ago Luossavaara-Kiirunavaara AB (LKAB) has produced over 950Mt of ore yet only one-third of the original ore body has been extracted.