Northeast Arm Iron Range, Iron ore mining site in Nipissing District, Ontario, Canada
The Northeast Arm Iron Range stretches along Lake Temagami's western side, containing alternating bands of iron-rich and iron-poor sediments within the Temagami Greenstone Belt.
Mining operations at Sherman Mine began in 1968 as a joint venture between Dofasco and Tetapaga Mining Company, processing iron ore into pellets until 1990.
The iron range development brought diverse mining communities to the Temagami area, influencing the regional economic structure of Northeastern Ontario.
Visitors can observe the intricate geological formations of banded iron along Highway 11, with access points marked for geological study purposes.
The iron formation contains chert, jasper, and magnetite deposits that originated from hydrothermal venting in a Neoarchean ocean 2.7 billion years ago.
Location: Ontario
GPS coordinates: 47.05692,-79.84684
Latest update: March 6, 2025 03:34
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