Henry David Thoreau, the writer of Civil Disobedience, visits Minnesota on doctor’s orders to sample its thoroughly clean air. He roams the woods all-around Minnehaha Falls, cataloging the names of the indigenous flowers and birds.
An endeavor to tunnel underneath St. Anthony Falls collapses the waterfall, forming a harmful whirlpool that threatens the region’s most important electricity supply. Hundreds of volunteers fill the hole, and finally the Minneapolis Hearth Division diverts the water.
Joseph A. Wheelock writes a letter in the St. Paul Pioneer Press urging conservation of the remaining stand of virgin pine trees all-around Lake Itasca. A year afterwards, Itasca will become Minnesota’s 1st condition park.
The U.S. Common Land Business office sets apart 500,000 acres of public lands to create a forest reserve in northern Minnesota. In 1905 a different 141,000 acres are set apart, and in 1909 President Teddy