Polymet Mine, Hoyt Lakes

Polymet Mine in Hoyt Lakes, Minnesota, with water-filled pits and haul roads
The Polymet Mine is shown in Hoyt Lakes, Minnesota. The open-pit site includes water-filled excavation areas, haul roads, and surrounding spoil piles in the Erie Basin. Red industrial buildings and equipment are visible on the horizon across the reclaimed and active mining landscape.
Photo taken in August 2015.
Photo Part Of
Iron Range
Industrial infrastructure and signage across Minnesota’s Iron Range, from Polymet operations to power plants and safety warnings
6 photos • 2026
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