08/11/2026
Book your cabin today to see this amazing place.
We are located within 15 minutes of this historic location.
Minnesota's Lost 40 exists because a survey crew got cold, tired, and careless during a snow squall in late November 1882. Josiah King and his three-man team were mapping townships in the pine forests north of Grand Rapids when they misplotted Coddington Lake, drawing it much larger and farther northwest than it actually sat. On paper, roughly 144 acres of prime timber suddenly appeared to be underwater.
That single mapping error turned out to be one of the luckiest mistakes in Minnesota's environmental history. Minnesota was one of the country's dominant timber suppliers through the late 1800s, and loggers cleared old-growth forest across the state at a pace that left almost nothing standing behind them. But timber cruisers working off King's inaccurate map simply skipped the "lake," never realizing there was a stand of towering red and white pine sitting right where their survey said there wasn't. The trees kept growing, untouched, for nearly eight decades while the forest around them got cut down and eventually regrown as much younger woodland.
The mistake wasn't caught until 1960, when a resurvey finally corrected the error and revealed the truth: no lake, just an accidental pocket of ancient forest that had somehow survived the entire logging boom. Rather than harvest what was left, officials folded the land into Big Fork State Forest, and it's now managed jointly by the Minnesota DNR and the U.S. Forest Service as part of the Chippewa National Forest, protected permanently as a Scientific and Natural Area.
What's standing there today is genuinely rare. Some of the red and white pines run 300 to 400 years old, trees that were already well established when European settlers first arrived in the region, towering up to a hundred feet overhead in a way that makes the forest floor feel more like an old-growth stand out west than anything typical of the Upper Midwest. Old-growth forest now covers less than 2 percent of Minnesota's total timberland, and the Lost 40 remains the largest single surviving patch of it in the entire state, a one-mile self-guided trail winding through trees that exist today purely because a cold, exhausted surveying crew drew a lake in the wrong spot on a map nearly a century and a half ago.
