Kiruna was founded around 1900 as a mining town, and the iron ore mine, which is said to be the biggest underground mine in the world, is still the most important industry in the city. The mine is operated by LKAB.
Kiruna is interesting from the railfan`s point of view. The railroad line to Narvik/Norway was built around 1900 together with the city, and ore trains as well as passenger trains operate between Kiruna and Narvik.
A memorial for the railroad workers (Rallare) was built up at the train station. Some pictures of a hike along the line can be found in the section "Norway" of my index page.
The mining company LKAB has a server with information (www.lkab.se).