The Rock Elm Disturbance is an impact crater in Wisconsin, United States, roughly 40 kilometers Southwest of Menomonie. The disturbance is named for Rock Elm, Wisconsin, a nearby community.
The meteorite is estimated to have been 170 meters in diameter with a mass of 9x109 kg and impact velocity of 30 km/second. The crater is 6 km in diameter, and fossils found in the rock filling the crater suggest it dates to the middle Ordovician Period, about 455 to 430 million years ago.
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Come and see my shining palaces built upon the sand.”
—Edna St. Vincent Millay (1892–1950)
“Men nowhere, east or west, live yet a natural life, round which the vine clings, and which the elm willingly shadows. Man would desecrate it by his touch, and so the beauty of the world remains veiled to him. He needs not only to be spiritualized, but naturalized, on the soil of earth.”
—Henry David Thoreau (1817–1862)
“...though one can be callous in Ireland one cannot be wholly opaque or material. An unearthly disturbance works in the spirit; reason can never reconcile one to life; nothing allays the wants one cannot explain.”
—Elizabeth Bowen (1899–1973)