Hill-Annex Mine, south side of taconite island before blasting
A taconite island is shown in the pit of the Hill-Annex Mine. A haulage truck is in the foreground and mine buildings are in the background. The Hill-Annex Mine was an open pit iron mine in the Mesabi Range, Minnesota. The Mine started shipping ore in 1914 under Inter-State Iron Company and operated until 1978, producing some 63 million tons of ore. After the Hill-Annex was closed the pit flooded, and the site became a state park in 1988.