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Once thought to be the oldest rock on the North American continent, the 3,600 million-year-old Morton Gneiss is quarried in several locations for use as a building stone. This roadcut is readily accessible alongside US 71 and MN 19 in Morton. (Got about 3/4 of the gigapan I had hoped for, the gigapan mechanism was no...
www.mortonarb.org The Morton Arboretum is an internationally recognized nonprofit organization dedicated to the planting and conservation of trees. Its 1,700 acres hold collections of more than 4,000 kinds of trees, shrubs, and other plants from around the world. The Arboretum was founded in 1922 by Morton...