Northeast Arm Iron Range

Northeast Arm Iron Range
Stratigraphic range: Neoarchean, 2,700 Ma Pha. Proterozoic Archean Had. ↓
Folded iron formation of the Northeast Arm Iron Range exposed along Highway 11
Type	Geological formation
Unit of	Temagami Greenstone Belt[1]
Thickness	Up to 80 metres (260 ft)[1]
Lithology
Primary	Chert, jasper, magnetite[2]
Other	Hematite, pyrite, tuff[2][1]
Location
Coordinates	47°3′24.9″N 79°50′48.62″W / 47.056917°N 79.8468389°W / 47.056917; -79.8468389 (Northeast Arm Iron Range)
Region	Ontario
Country	Canada
Type section
Named for	Northeast Arm of Lake Temagami

The Northeast Arm Iron Range, also called the Temagami Iron Range, is an elongated area of iron ore in Nipissing District of Northeastern Ontario, Canada. It parallels the western side of Lake Temagami's Northeast Arm near the village of Temagami at its northern end. One of many small iron ranges in the Temagami area, the Northeast Arm Range consists of alternating bands of iron-rich and iron-poor sediments. It was discovered in the 1890s and has since seen sporadic mining and mineral exploration activities.