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Cuyuna Country State Recreation Area (CCSRA) is a state park unit of Minnesota, USA, being developed to rehabilitate a portion of the Cuyuna Range where mining pits and piles of waste rock were left behind after decades of open-pit mining for iron ore. Abandoned by mining companies more than 20 years ago, the state recreation area consists of ...
Lake Superior, over 700 feet deep off the north shore of the state, is technically deeper. The 120-acre (49 ha) artificial lake is a former iron mining pit in the Cuyuna Range that has since filled with water. It is part of the Cuyuna Country State Recreation Area, located in Crow Wing County. The lake is within Crosby city limits.
Open pit mining started at the Rowe mine in 1912. In addition to the iron, the ore was rich in manganese, which was useful during World War I, with 32 mines operating. [1]: 6 At the height of the mining, the Cuyuna Range was the location of the worst mining disaster in Minnesota, the Milford Mine disaster. [3]
The Cuyuna Range mine is a mine located in the north of the United States in Minnesota. Cuyuna Range represents one of the largest manganese reserve in the United States having estimated reserves of 247 million tons of manganese ore grading 8% manganese metal.
Cuyuna Lakes State Trail: Cuyuna Country State Recreation Area: 6 9.7: Paved: Wends through a regenerating open-pit mining area and connects with several mountain biking trails. [110] Douglas State Trail: Pine Island – Rochester: 13 21: Parallel paved and unpaved: Stretches through the rural scenery of a rich agricultural region. [111 ...
But on the Mesabi and Cuyuna Ranges, iron mining operations evolved into enormous open pit mines, where steamshovels and other industrial machines could remove massive amounts of ore. "Large-scale commercial production of magnetite taconite ore on the Mesabi Range started in 1956 at the Peter Mitchell Mine near Babbitt, Minnesota." [2]
Cuyuna (/ k aɪ ˈ j uː n ə / kye-YOO-nə) [4] is a city in Crow Wing County, Minnesota, United States. The population was 332 at the 2010 census . [ 5 ] It is part of the Brainerd Micropolitan Statistical Area .
To bring the ore to customers' specifications, the mines sought to "beneficiate" the ore through sintering, crushing, and washing. The sintering process was unique to the Cuyuna Range and made it possible to economically support mining. [2] The plant sits on the west shore of Portsmouth Mine Pit Lake, formerly an open mine pit. The plant ...