PEOPLE KNE FOR a long time t t toer supply reported bringing up alot of strangely deformed rock—“crystalline clast breccia  matrix” and “overturnedejecta flap,” as it er described in an official report. ter oo. It  as soft as rainer. Naturally occurring soft er had never been found in Iowabefore.

    trange rocks and silken ers ters of curiosity, forty-oneyears eam from ty of Io around to making a trip to ty, to t part of tate. In 1953, after sinking a series of experimental bores, university geologists agreed tte tributed to some ancient, unspecifiedvolcanic action. t it  as.

    trauma to Manson’s geology  from  from at least 100million miles beyond. Sometime in t past,  a mile and a en billion tons and traveling atpermospo t ant a y miles across.

    tone t elseerated andreplaced by t rocks t so puzzled ter driller in 1912.

    t  t edStates. Of any type. Ever. ter it left be if you stood on oneedge you  be able to see t  and trifling. Unfortunately for lovers of spectacle, 2.5 million years ofpassing ice ss filled ter rigo top ill, tsmoot today t Manson, and for miles around, is as flat as a tabletop.

    er.

    At ted to sion of neiclesand a box of core samples from a 1991–92 drilling program—indeed, tively bustle toproduce t you o ask to see t is on display, andnoorical marker.

    to most people in Manson t to ornado t rolled upMain Street in 1979, tearing apart trict. One of tages of all tsurrounding flatness is t you can see danger from a lo