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Lost 40

The Lost Forty (or Lost 40) is 144 acres of old-growth pine forest located in Minnesota that was preserved due to a surveying error during the Public Land Survey in 1882. [1]

History

During the Public Land Survey in 1882, surveyors mistakenly mapped the area as Coddington Lake, which is actually located half of a mile southeast, leading to the area not being logged. [1]

The area was re-surveyed in 1960, with the error corrected. Following this, the area was incorporated into Big Fork State Forest. [1] The Lost Forty is part of the Chippewa National Forest Recreation Region. [2]

Significance

Based on a 2009 study, the oldest individual trees within this area to be 230-240 years old red pines.[1] However, conflicting sources cite these trees to be over 300-400 years old. [2]

In present day, less than 2% of Minnesota's forests contain old-growth trees. [2]

References

  1. ^ a b c d "Lost 40 SNA | Explore Minnesota". www.exploreminnesota.com. Retrieved 2026-05-19.
  2. ^ a b c "Chippewa National Forest | Lost 40 | Forest Service". www.fs.usda.gov. Retrieved 2026-05-19.

47°46′01″N 94°05′06″W / 47.767°N 94.085°W / 47.767; -94.085

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